How do narcissists perceive personal gain in relationships, and why does it take precedence over genuine connections?

What are some reasons why people may dislike being a teacher, despite it being a potentially rewarding career and a way to help children learn and develop?
Is there any psychological explanation for why some individuals evoke intense fear or discomfort in others without doing anything overtly threatening?
Is pretending everything is fine just the adult version of rage-quitting life?
Does a religion prevent a person from being a human and having human emotions in any way?