I don't understand your question, and because I'm interested in your view on the topic I'll seek clarity. By what metric are you using to determine that Scientology struggles to 'overcome' human nature? Last I checked Scientology is the largest and fastest growing modern day religion in the world, is the largest independent disaster relief organization in the world, was founded by the most published author of all time, and is also the most sought after alternative to psychiatry in terms of mental health treatment options. If you or anyone else believes these statements to be "moot" or "irrelevant" as far as understanding human nature is concerned, then pray tell: what information would you instead cite to support the inverse of your implicit claim, that Scientology 'struggles' to overcome human nature?
Just addressing the bolded part.
Islam is the world's fastest growing religion - and not just in Muslim majority nations: 10% of all Europeans are projected to be members of the Muslim faith by 2050, according to a recent Pew Research Center study.
34 of the largest Disaster Relief Organizations
•Médecins Sans Frontières/Doctors Without Borders (MSF)
An organization that is dedicated to helping people worldwide where the need is greatest, delivering emergency medical aid to people affected by conflict, epidemics, disasters, or exclusion from health care.
•Mennonite Central Committee
MCC is a global, non-profit organization that strives to share God’s love and compassion for all through relief, development and peace. When responding to disasters, they work with local groups to distribute resources in ways that minimize conflict.
•Direct Relief International
Direct Relief is a humanitarian aid organization. It’s active in all 50 states and 70 countries and has a mission to improve the health and lives of people affected by poverty or emergencies.
•International Red Cross
From small house fires to multi-state natural disasters, the American Red Cross goes wherever they’re needed, so people can have clean water, safe shelter and hot meals when they need them most.
•Brethren Disaster Ministries
One of BDM's primary fields of work is engaging in a network of volunteers to repair or rebuild damaged homes for disaster survivors who cannot recover on their own.
•The Ananda Marga Universal Relief Team
AMURT’s mission is to help improve the quality of life for the poor and disadvantaged in the world besides those affected by calamities and conflicts.
•The Nazarene Disaster Response
Their vision is that Nazarenes would be empowered to respond in practical and tangible ways to their community in case of any instance of a disaster.
•REACT International
They will provide public safety communications to individuals, organizations, and government agencies to save lives, prevent injuries, and give assistance wherever and whenever needed.
•All Hands
All Hands is the world’s leading disaster relief organization powered by volunteers. Over the last ten years, they have enabled over 35,000 volunteers to donate 175,000 days impacting 500,000 people all over the globe.
•CityTeam International Disaster Response
Cityteam is a Christian nonprofit organization that’s compassionately serving the poor, the homeless, and the lost in San Jose, Philadelphia, San Francisco, Oakland, Portland, and other parts of the world.
•OXFAM
Oxfam is an international confederation of 18 NGOs working with partners in over 90 countries. They help those who need it most after natural disasters strike their homes.
•Billy Graham Rapid Response Team
The Billy Graham Rapid Response Team (RRT) trains God’s people for grief ministry. It also deploys crisis-trained chaplains to provide emotional and spiritual care to those affected by man-made or natural disasters.
•ADRA
ADRA Canada, part of a world-wide ADRA network, has been working to end extreme poverty in some of the poorest communities of our world for three decades.
•Hope Worldwide
HOPE worldwide is an international charity that changes lives by harnessing the compassion and commitment of dedicated staff and volunteers to deliver sustainable, high-impact, community-based services to the poor and needy.
•NECHAMA
NECHAMA is a voluntary organization that provides natural disaster preparedness, response, and recovery services nationwide. Through the years, they have brought comfort to disaster survivors by training and mobilizing thousands of volunteers to help communities in the aftermath of floods, tornadoes, and other natural disasters.
•United Methodist Committee on Relief
The United Methodist Committee on Relief (UMCOR) is a non-profit organization dedicated to alleviating human suffering around the globe. UMCOR work includes programs and projects in disaster response, health, sustainable agriculture, food security, relief supplies, and much more.
•Plan India
Plan India, a member of Plan International Federation, is a nationally registered independent child development organization committed to creating a lasting impact in the lives of vulnerable and excluded children, their families, and communities.
•Save The Children
2015 presented the world with unprecedented challenges. Thanks to their incredible generosity, Save the Children responded to 99 humanitarian crises in 59 countries, directly reaching 13.8 million people, including 7.1 million children.
•CARE
CARE International is a global confederation of 14 member organizations working together to end poverty caused by conflict and natural disaster.
•AmeriCares
AmeriCares saves lives and improves health for people affected by poverty or disaster so that they can reach their full potential.
•GlobalGiving
GlobalGiving is the first and largest global crowdfunding community for nonprofits. Since 2002, GlobalGiving has raised $230,218,366 from 536,778 donors who have supported 14,942 projects.
•International Relief Teams
International Relief Teams (IRT) is a top-rated non-profit humanitarian organization dedicated to alleviating human suffering worldwide and in the United States. IRT specializes in two complementary sets of activities: disaster response and building healthy communities.
•Bill & Melinda Gates Foundation
They work with partner organizations worldwide to tackle critical problems in four program areas. Their Global Development Division for instance works to help the world’s poorest people lift themselves out of hunger and poverty which is often caused by natural disaster.
•ICCO
ICCO is the interchurch organization for development cooperation. They work towards a world in which people can live in dignity and well-being; a world free from poverty and injustice.
•Relief International
Relief International is a non-profit organization whose sole mission is to reduce human suffering. They respond to natural disasters, humanitarian emergencies, and chronic poverty. They are non-sectarian and non-political.
•WHO
The World Health Organization (WHO) helps protect those displaced by natural and man-made disasters from the ravages of disease.
•Mission Aviation Fellowship
You'll find MAF in the hardest-to-reach locations, where people live isolated from the rest of the world, cut off from the most basic necessities. Their highly trained pilots maneuver Cessna and KODIAK aircraft through rugged terrain.
•World Vision
They’re continuously building relationships. By planning and working alongside local leaders, they’re finding solutions to change the future for kids and the next generation.
•Amref
They are committed to improving the health of people in Africa by partnering with and empowering communities, and strengthening health systems.
•ShelterBox
By providing emergency shelter and tools for families robbed of their homes by disaster, they’re transforming despair into hope.
•Medical Teams International
They provide medical and dental care, humanitarian aid, and holistic development programs to all people in need, regardless of religion, nationality, sex, or race.
•Humanitarian Coalition
The Humanitarian Coalition strives to maximize Canadian fundraising efforts in support of members’ assistance programs for the survivors of international humanitarian disasters. By working together, the members seek to increase the awareness of needs, reduce the duplication of costs and take the guesswork out of giving for Canadians.
•GlobalMedic
They quickly respons to disasters with a Rescue Unit, Water Purification Unit and Emergency Medical Unit. Helping those who need it most.
•Engineers Without Borders
A non-profit humanitarian organization established to partner with developing communities worldwide in order to improve their quality of life.
As for most prolific author, I'll give you that, but take a look at how many books were sold. Nowhere near the top.