Seems like he's getting investment from many of the same folks who are selling him the hardware and renting the rack space. It's just an investment oroboros.
You mean when the board of directors wanted to fire him? Considering the recent news of OpenAI transitioning towards for profit i think they got what they wanted from keeping him in charge. Seems like something Microsoft would benefit from and if they'd have gotten a different CEO at the time who knows if it had come to this point.
The alternative was ceding it to the people that are True Belivers iirc? Say what you will about Sammy boi, I'm pretty sure at least he doesn't fucking believe in the lies he says, something that cannot be said about Ilya or some other (former) high profile people there.