From what I have read, he's still likely to be able to line up enough votes to get his $1 trillion pay package (and the associated voting rights), despite a lot of major institutional investors being in opposition. But we'll see when the vote goes though.

I think that Tesla can probably get a more-effective CEO for less money, personally. Even if he leaves as CEO, he still owns 15% of Tesla and is fabulously wealthy as a result. I don't feel like he's getting a bad deal.

I do think that there are some arguments that the SEC should pass some regulation to help ensure board-CEO independence; part of the issue is that the board, which is supposed to oversee Musk, has been considered to be acting on his behalf by quite a few people. I don't think that it will happen under the present administration, though.