[khafra]

Doing something like entrepreneurship is, on the face of it, irrational. Not to say that there aren't plausible sets of values which would rationally take on that much work for such a low chance of large reward--but most real people who do it overestimate their chances of success.

The net effect seems to be positive for the world, but you'd need everyone to be extremely rational (basically TDT level) before they'd do something like flipping a coin five times and doing a startup if it comes up all tails.