Uh, no. Surprisingly few "rich dudes" have shown an interest in cryonics. I know quite a few cryonicists and I have helped to organize cryonics-themed conferences, and to the best of my knowledge no one on the Forbes 500 list has signed up.

Peter Thiel seems to be on the Forbes 500 list. Are you arguing that he isn't signed up for cryonics? Are you saying he simply isn't attending those conferences?