>>16760770 (OP)
Culture has impact.
We are (fading out of) an esteem society. Respect, intelligence, creativity, good grooming, cooperativeness, agreeability, all are employable/high earning characteristics, and good to pass on.
Being a tough guy becomes favourable when times are harder and survival depends on assertiveness, strength and agression.
Right now we have glamourized cave man bullshit within entertainment (crime being cool, fighting, being dominant at any cost) so the balance is being thrown off by our own media, (even rich kids wanna present as criminals), but right now, not being a retard mouth breather is still more beneficial strategy for the time being.