As for employees end masse acting publicly disloyal to their employer, usually not a good career move.
The only part left of the non-profit was the board, all the employees and operations are in the for-profit entity. Since employees now demand the board should resign there will be nothing left of the non-profit after this. Puppets that are aligned with for-profit interests will be installed instead and the for-profit can act like a regular for-profit without being tied to the old ideals.
Wut?
This is software, not law. The industry is notorious for people jumping ship every couple of years.
Furthermore, it's consistent with all available information that they would prefer to continue without Sam, but they would rather have Sam than lose the company, and now that Microsoft has put its foot down, they'd rather settle.
Besides, considering it was four against two, they would’ve needed him for the decisive vote anyway.
I’m not sure why you wouldn’t trust Sam Altman‘s account of what Ilya did and didn’t do considering Ilya himself is siding with Sam now.
Altman showed nothing why he would or wouldn’t lie. If he is really wanted to do things against the board, or the mission, or whatever, then it is in his interest to lie. However, we still don’t know anything, so we can’t exclude any possibilities. That means that interested parties’ statements’ value is almost nothing. It’s easy to lie in muddy waters.