I was exposed to different frats at different colleges although I was never a member.
College-A, drank like fish, had a maid and food service and were unruly. Total spoiled brats.
College-B, told members who they could be friends with, one guy that joined would no longer talk a friend and myself. However before he left he tried to convince us to join with him. Claimed they had copies of all the calculus tests (
collected over years/decades), some members acted as tutors for other members so everyone did well. They seemed to share everything, I suspect even girlfriends if she would go for it.
A bit too cultish for me.
They had more than enough virgins to sacrifice though.