Maybe so, but the mountain climbers and extreme sports enthusiasts that kill themselves in search of adventure don’t leave much of a legacy, but people worship their dumbness with lots of positive anthologies.
To a larger degree than almost any other vertebrate, human societies have sacrificial males; males that give up their lives for the benefit of the group. In fact human societies idolize this sort of behavior. Sounds contradictory but obviously has survival value for the group as a whole.
Indeed, as Richard Leaky pointed out, injuries to our fragile knees and ankles have always been so common that if we didn’t rally around and put ourselves in peril to defend our own, humans woulda gone extinct a long time ago.
Maybe the flying-squirrel suit guys are on the far end of that particular genetic bell curve.
"...if the gentlemen of Virginia shall send us a dozen of their sons, we would take great care in their education, instruct them in all we know, and make men of them." Canasatego 1744
