I have no experience with Mensa myself, but generally, you don't want to hang around people who have a lot (money, intelligence, looks), what you want to do is

I have no experience with Mensa myself, but generally, you don't want to hang around people who have a lot (money, intelligence, looks), what you want to do is to hang around people who do a lot (entrepreneurs, hackers, writers, artists, physically active people). And, for the inevitable objection: yes, you could be a do-er who also ended up having a lot. But the reverse is not necessarily true.