Has anything Musk promised actually happened?
As far as I know, his investment in Paypal is the only of his ploys rendering society a service of any kind, Tesla doesn't count. Feel free to correct me, but other than Paypal, which with all its flaws and its unfair transaction prices, is at least of some use to the public, nothing ever really worked.
Edit : before anyone mentions Starlink, if we never go to visit the actual stars, it will be because of idiotic ventures like this one, ending up clogging the lower orbit with space junk we cannot remove.
His Space Dongs Rockets mostly work.
As far as I know, most of them explode in a very non environmentally friendly burst of fuel flames in the natural reserve around Boca Chica, which harbours a collection of endengered species. What history will remember of his rockets, is Texan government expropriating villagers at gunpoint to make way for a private venture ending up in exterminating rare species of cats and turtles.
Wild life preservations societies and expropriated residents are currently organizing to end that joke, which to them is of little comedy value.
He's infected our minds so we can't stop talking about him.
He has a good communication team, that's for sure. Saturation of the public space is the essence of propaganda.