There's another crypto figurehead who is prominently in the EA tribe: Vitalik Buterin.

I would characterise both as elite but not upper class (as in, regularly going to old money dinner/rave parties).

I don't know which of the two is more "Effectively Altruistic".. lol.

Nevertheless, I find the anti-parallels with Buterin .. charming. Vitalik is clearly less anti-intellectual, less ambitious (more Ravenclaw than Slytherin), and thus less offensive to the gods.