Yeah...men are so great at economic evaluation. Like my 2 startups that have netted be about $0.10 / hr for the hundreds of hours of my free time that I spent on them. I'd be waaaay richer if I had just been selling handmade beer coozies on Etsy.
There was an interesting bit (though a bit speculative) in "Why is sex fun" by Jared Diamond: it said that gathering was actually more effective than hunting. But men would hunt because if they came home with prey they were able to have a big party, share meat with neighbors and other women, and have a better chance at having more sex...
As I said it was a bit speculative (I think - they even said so in the book), but it seems to fit startup life quite well.
(The odds of you having a successful startup are about that of you having a profitable beer cozy "company.")
These folks -- http://www.sportscanholder.com/ -- could sell their business for more than a million dollars.