He brings one thing (almost*) no one else does. Funding. Everyone else working to make the world a better place can't get funding. Government's won't give them funding because they will lose their voter base, and other corporations are only interested in making more money.
Jeff Bezos, Mark Zuckerberg, Warren Buffet, Larry Page... all of them make just as much as Elon (relatively, I mean, compared to us they sure as heck do) and and none of them interested in making things better. (other than the size of their wallets)
- I'm not an Elon fanboy, I fully accept he is an asshole, and as SOON as someone else comes along willing to put their money into making the world a better place to the level Elon is I will support them instead.
* - Bill Gates being the notable outlier, and I should note that I fully support him as well, (or at least his foundation)
** I cannot speak to the safety rating and too find the 10x number suspect.