SBF got his start in crypto doing arbitrage with Japan, because setting up a trading account in Japan was hard. He got someone to do it through the EA community.
Most of the people who are in positions of power in his companies came from the EA community. And no joke a bunch of them are all in romantic relationships with each other too. You've got the CEO of his trading firm, who SBF dated, posting on tumblr about how poly relationships should be a vicious power struggle to get to the top.
I think you're way underestimating just how weird and cultish this whole clique is, and how moral criticism is actually valid here as the ideology is in a central role. These people cast themselves as noble heros making the world better in the net, when in reality they're total nepotistic weirdos.
Seems that he always benefited from membership in the cult.
Generally, in public downfalls like this, people over ascribe the causes to moral turpitude. There aren’t enough details here to say either way yet. There is a good book about this sort of thing Mistakes were made (but not by me). [1]
I think the blog post is very good, providing a unique perspective, and wonderfully written.
[1] https://www.amazon.com/Mistakes-Were-Made-But-Not/dp/1491514...