Bezos and Musk are both waxing romantic about saving the human species with space colonization, it does sort of encompass a large number of our problems!
His media narrative is about being the visionary genius who will propel humanity to the next era--working on the big problems in a flashy way has the side effect of being pretty great for your public regard, and therefore most likely your ego. Being a Reddit manbaby and working on big, next-era goals are not mutually exclusive.
And where did I say he was working on all problems?
I was talking about the general psyche of tolerating abusive assholes ( ie. Steve Jobs ) and eccentric renaissance man who we "know" will crash and burn but we rationalize it like "we'll get some indirect benefits, just like the whole NASA thing" or "at least the trains run on time".
There are justified reasons behind this, but also a lot of excuses. The whole Elon fever is something between Steve Jobs and the usual Hollywood actor talking politics on stage.
Where has that been promised? He's working on a rather small set of big problems, which is a far cry from 'all our problems', don't you think?