Why are Jocks so arrogant, dangerous and STUPID?

That guy and his moronic mates gunning for Eddie AND the Hellfire Club members just made me wonder what can make less-than-intelligent students obsessed with sports and hateful of more intelligent people so VICIOUS?

And why do all Jocks wear those stupid jackets with a letter representing the school ("H" for Hawkins in this case) in that godawful font that just SCREAMS AMERICANA? You see it on pennants on bedroom walls, too. Who designed that godawful font?