As for the OpenAI that is a public benefits corporation, I know nothing about all the ins and outs of that type of corporation.
Is there some part of this that I'm missing where this was true of OpenAI at some point?
A cynical take is that non-profits are for-salary; they still pay their owners, just using other means.
edit: no, my bad, apparently I misunderstood how non-profits work in the USA. Thanks for the correction :)
You cannot have a % ownership in a nonprofit because its resources must be used exclusively to carry out its mission. You could have a % control in its decision making process.
The $60M in IP has grown to about a $200B stake in the OpenAI for-profit.