Something I've been in mind of as an observation is that: a demographic that takes the highest place in the social hierarchy, tends to create the harshest internal hierarchies. At least that's what it looks like to me.
I've been watching "Orange Is the New Black" and musing that women's prison would probably be easier for me to negotiate socially than Hollywood. Whatever is the dominant, most elite group, is also the most internally brutal. I think this is part of the confusion about the question of "white male superiority". While it's true that gatherings of politicians and CEOs tends to over-represent white men, I also think that internally, the bullying among that demographic is some of the harshest. Same is true of the financially elite, beautiful, social powerful women. The "mean girl" syndrome is how the dominant women behave and it is all about hierarchy, both internally to the group and externally. The financial elite are some of the most brutal in their insistent internal hierarchies.
I'm not certain that everyone realizes that, but the members inside the elite group that are at the bottom, can be treated with significant amounts of oppression. It is a different sort of oppression from the external, demographically based hierarchies, but it is there.
The point of this random thought is to show a higher resolution of social power hierarchy. When a group's entire identity is based on it, then it become the sole way of defining the self, resulting in these rigid, even brutal internal hierarchies. The more powerful or brutal a group is outwardly, the more brutal it is inwardly.
Edit: I do of course realize that the show isn't a representation of reality, but I grew up as trailor park trash, and have known a lot of people with a range of issues and actually am accurate in this assessment. I seriously would not want to have to face a prison population, but the people there would be more familiar and make more sense to me even in the way they create power than the people in Hollywood. I've only recently learned about the elite groups from the inside.