It's not like Elon Musk building this rocket is at the expense of SolarCity (improving the environment through solar energy).
Sure, I've seen humans change - but only under heavy "brainwashing", i.e. internalizing an ideology that values being fair, helpful and truthful, and that only holds with a support structure of adherents. And I doubt it scales.
If you look at the world, a lot if not most changes for the better are technology-driven. Technology alters the economical landscape, which makes people do things better, even though they're still following the same behaviours as they always did.
TL;DR: I think individuals have much less agency than we'd like to think.
I think the only "spiritual" anything we need is to drop anything spiritual and focus more intensely on reality and evidence based reasoning. Spirituality has done plenty of harm and it is not hard to argue more harm than good if you can lump religion in there with it.
Your ridiculous claims about undiscovered capacities in our brains allowing to to survive is non-sense. Our ability to problem solve base on past experience/evidence is the real miracle and our gradual takeover of every ecosystem is why we have survived this far. Now we need to use this capacity we already demonstrated to not kill ourselves. Going to space is one possible option.
Besides that, Musk is doing two things at the same time. He tries both to protect the earth (Tesla, solar power), and initiate a base in case something happened to our home.
Spirituality alone won't help you survive winter, regardless of how developed your mind is.
It's funny that you would say that - you may want to take a quick look at this: https://www.youtube.com/watch?v=q6XKcsm3dKs
(The main site is: http://www.icemanwimhof.com/)
http://www.parool.nl/binnenland/-iceman-oefening-eist-opnieu...
You also don't drink and drive.
http://loweringthebar.net/2016/09/frozen-guru-update-iii.htm...
So, let him do what he is doing, he is doing everything right, now if you are communicating with people through mobile phones is just because of satellites, that happened only because people explored the space and it's application.
So, the final goal of Elon is great, support people so that you will also get good support when you have a great idea.
I believe we should first learn to clean up our act on planet Earth before we export anything of our existence and what we do.
To me, the real revolution that needs to happen is a spiritual one - a statement that will only be understood by those practicing meditation. Our brain has so many "undiscovered" capabilities. Discovering them will change our behavior and ultimately allow us to survive on Earth.