You could start with investing heavily in this planet, which is significantly more habitable than mars. Electric vehicles were a great start, but there's a lot more than EVs and reselling battery and solar equipment from China that can be done.

>Do you not see any value in developing the technology necessary to get to Mars - in order to travel elsewhere?

I see some value, and if Mr. Musk wants to pursue it, great. But let's not pretend he's saving humanity here; the God complex of SV is already bad enough.