Tech Titans making the world better; but for who?

Elon Musk may have been film-maker Jon Favreau's reference point for Tony Stark in the Ironman films, but it is hard to know whether the guy is more superhero or super-villain. Blasting a Tesla car into space was a fun gimmick. But nevertheless, Musk has created the most powerful rocket in the world right now, and it won't be long until he's blasting things into space that aren't the billionaire's version of schoolyard fantasies. Space travel holds a remarkable fascination of some of the rich. Their wealth and ambition is too much for this planet, and so they must reach forth, with plans to colonise Mars, become a multi-planetary species, and utilise space as a new tourist destination (for those rich enough and sufficiently bored enough with Instagramming remote and hard to reach corners of the globe).