But the decision is still subject to heavy scrutiny; in fact, more than with normal for profit corporations. It does not seem like the board acted in the best interests of the nonprofit here, they acted in their own.
How much did people on the board benefit from OpenAI going for-profit? Either directly by owning shares of the new for-profit, or knowing they eventually would, or by business connections to the new for-profit entity? I imagine most or all of them.