> He's just been found guilty of fraud on multiple counts, so clearly the whole "Effective altruism" was just a image he was trying to present, while acting completely against it in private.

I don't think that's right. In his head, it wasn't fraud. He was moving money around to backstop losses, sure, and OK, technically it wasn't his. But it was all going to be OK in the end and no one would know. No one was going to lose any money, so no fraud. QED.

In the real world, criminals don't think they're criminals. Everyone's got a good reason for doing what they do.