I think its malignant narcissism. If you believe you are smarter than everyone else for long enough you convince yourself you can get away with anything. If you actually manage to get away with things for long enough as SBF did for a long time, your worldview is probably pretty warped by it and you think you are the only one smart enough to solve the situation you find yourself in. This is why people like SBF and Trump ignore the advice of counsel and just keep running their mouths. They cannot help themselves. They cannot stop. If they are smart, wealthy and lucky enough they get away with it to... until they dont.
> If you believe you are smarter than everyone else for long enough you convince yourself you can get away with anything.
Indeed. That's why there's a rule of thumb that says that the instant you think you're better or smarter than everyone else in the room, you've just become the dumbest person in the room.