That tweet is completely devoid of substance and if it truly changed your mind you are a mindless sheep just believing whatever Sam Altman and his crony of VCs tell you to.
Something like this requires a lot of different skills. There's probably zero companies out there where the CEO is the best engineer at the company; it requires different skills. I'll concede Musk is more of a figurehead (he's been gone for years), but Sam and Greg are incredibly involved and don't deserve your criticism.