musky boy won't do jack shit, neither on twitter or on Mars. He's all about hype, just look at hypeloop (not even an working prototype that comes close to his promises after more than a decade), self driving or the tunnel fiasco (I could keep going) . Sure he has had some things materialize after years of delay and I don't want to take away his contribution to the car industry getting greener. But he's mostly about hype and enriching himself
Expectations > reality, always.
His results in space travel and electric cars area are nothing less than stellar. Other venues, mediocre, at best. But that doesn't make the other achievements less. Nor they entitle him to tackle impossible, intractable problems like "free speech".
Anyway, there is no savior, being it Elon Musk or somebody else.