Not to mention that most startup founders in the western world come from affluent families, so quitting a great job to do a startup isn't particularly risky for them since they normally won't end up on the street if they fail. Bouncers and fighters on the other hand risk their lives.

This talk about startup founders having to be "tough" just seems like an ego boost to make the whole startup experience feel heroic and epic, which I think is OK because a little self-aggrandizing is probably good for motivation.