if you surround yourself with intelligent people (which for the most part he did in both 2016-2020 and now) they will get sick of him soon (we have 78 years of examples of this…) :)
He bought himself into the White House as a tech-bro Rasputin, probably the most paid for that level of influence, so we can expect him to get his money's worth.
Apparently it sort of was worth it for Musk, but it cost him, and is going to cost further down the line.