Jeet doesn't mention it here, but Effective Altruism was also a way rich tech assholes were trying to smuggle genocidal racism into the mainstream.
I don't think it started out that way, necessarily. Maybe it was a genuine "mosquito nets and kidney donations" kind of thing. But that's where it went once it merged with Longtermism which was, basically, 1000 of us uber-nerds and our sex slaves need to survive for millions of years but fuck the rest of you.