Just look at the whole health/fitness sphere. You've got people that never eat X because reasons. Crossfitters. Serious weightlifters judge other people at the

Just look at the whole health/fitness sphere. You've got people that never eat X because reasons. Crossfitters. Serious weightlifters judge other people at the gym for using machine weights. I've found that ruggers have a superiority complex when it comes to football ("they wear pads, what wimps!"). There are also sorts of groups in different fields that consider themselves more hardcore than the masses. It definitely is human nature.