It might not seem like the case right now, but I think the real disruption is just about to begin. OpenAI does not have in its DNA to win, they're too short-sighted and reactive. Big techs will have incredible distribution power but a real disruptor must be brewing somewhere unnoticed, for now.
From here on out there is going to be far more media scrutiny on who gets picked as a board member, where they stand on the company's policies, and just how independent they really are. Sam, Greg and even Ilya are off the board altogether. Whoever they can all agree on to fill the remaining seats, Sam is going to have to be a lot more subservient to them to keep the peace.
And say what you want about Larry Summers, but he's not going to be either Sam's or even Microsoft's bitch.