Yes, if you value money at log($) like microeconomics says you should, then you should start something less risky than a startup.

As Charlie Stross's essay (http://www.antipope.org/charlie/blog-static/2012/09/on-the-d...) points out, there's another level. Elon Musk might get to retire on Mars. Bill Gates will probably cure malaria and several other big world problems.

So if your goal in life is not just having enough food & toys but changing the world, the big money comes in handy.