I only know one person currently at spaceX, but I'm willing to bet there's a large contingent of people working there who would sell their souls to die on Mars.
I'll be honest, I've never been the CEO of a successful 10,000+ employee company (or even an unsuccessful one, lol), but at that level, the amount of doing that a person can do themselves is limited.
I mean yes, it is often good to inspire people. But that is not strategy any more than you can win a game of Risk by beliving you can roll only 7s.