What's wrong with exclusivity? No offense, but of what use could such knowledge possibly be to crude, common people? They would simply tear it down and dismiss it as impractical and irrelevant to their lives, because they can't see beyond their own experiences and the immediate applications.
It would only be detrimental to the development of such ideas if these people were allowed to access them and so easily form and share their uninformed opinions about things. They would drown out the good ideas with their mass support of simpler ones that seemed right to them. It helps filter the people who aren't serious about understanding the subject out of the discussion.
People are always talking about the problems of exclusivity, but they never consider the problems the alternative approach would create.
The most intelligent person I have ever met was an ENTP. She understood that she really was way beyond the rest of us, and was a confident person, yet was also very understanding and forgiving of others lack of understanding. She would stop and explain anything to another person.
What I have noticed is that the smarter, more proficient, and competent my NTs are, the less arrogant they are. (Also oddly, the less "shiny" the ENTPs are on the surface)
They know they are very competent and have confidence in themselves-Ti?-thus do not need to build false barriers between themselves and others to make them feel more exclusive, more clever. They will still get impatient and a little frustrated if others are totally clueless, but they will not become abusive of them. They will actually take a lot of time to try and find ways to communicate as they realize that is how thier ideas become reality.
ENFPs help here as we can take a complex idea, spend some time understanding it, then translate it into a version a houseplant could understand.
My least confident ENTP is very arrogant, and has been very verbally abusive to others. On the surface others say he looks defensive, but based on what folks here say, it may be more extreme frustration that the ideas he presents are not taken seriously. He is showing marked decreases in arrogance and nastiness as his ideas have become more accepted and his behavior is almost normal now.
Not sure how this would apply given you are an INFJ, but perhaps Ti behaves similiar even in a tertiary way? Hope it was helpful.