If the numbers are true it costed him less than 0.1% of his wealth which is surprising how little it takes. Would you spend 0.1% of your wealth to elect a President and gain a government post that will bring you more wealth? Would you spend 1% of your wealth to become insanely rich? 10%?

In the society where power is measured by wealth ultra rich should not exist. Or better such society should not exist.

Also Musk wasn't even the biggest donor. And Harris was okay with this whole thing, she also received enormous donations. Who was against ultra rich? Bernie Sanders. No wonder he was sacked despite popular support.