Companies and shareholders meetings work a bit differently than what you suggest.
Other than that, the grand majority of Tesla shareholders are quite happy with the financial state of the company and would like for Musk to continue leading the company and be compensated for it.
It turned out this guy's claim was justified, given the court agreed. Again, if it was really important to these investors that Elon have more billions, they do not need any courts permission to just send him money.
