I imagine most of them were motivated by money. OpenAI was supposed to be Open. As I understand it, it was not created for shareholder profits and instead was made to benefit everyone? Hence the Open name. Then someone like Sam comes along who can make you incredibly rich by casually ignoring the initial mission. Would you go against this incredibly powerful billionaire who by many accounts is not encumbered by ethical quandaries? In doing so you risk your financial freedom, and for what? OAI is already a husk of its intended purpose. Mine as well get paid to be a sellout.