Almost everyone would prefer not to have repeats of Enron, FTX etc where poor corporate governance and unethical behaviour is tolerated just because the company is making lots of money.
I'm not sure OpenAI compares to Enron or FTX in terms of unethical behaviour or financial fraud. The only similarities might be, funnily enough, disfunctional boards (or in FTX's case, no board).
If OpenAI gets as far with AI as they want to, then it is absolutely imperative that nobody there is accidentally leaning on the scales, let alone actually doing anything (even something minor) with selfish intent.
Even if they're "just another tech firm", that's still enough for them to be another Facebook with the Cambridge Analytica and Rohingya scandals, and many people would like to make sure such things don't repeat.