No doubt.
However, I wonder if there is a correlation between the somewhat “submissive” application process (where some impressionable teenagers feel they have to go along with whatever tasking is demanded), followed by an “elitarian” feeling of being among a “chosen few” - thus having earned the perceived backing of like-minded. Some might feel superior, entitled, and untouchable - lowering the bar for reprehensible acts that they would never have considered as part of a regular community, without the concentrating effect of the U.S. “Greek” culture (my apologies to actual Greece.)
That was actually one of the few questions my daughter asked during college visits!
Some colleges seemed to have “outsourced” social life, even housing and dining to some degree, to membership organizations - which is great for those who can afford to “play the game”, or who are willing to compromise their principles to submit to whatever application/initiation rituals - even harmless ones, like having to purchase specific outfits for various nights during “rush”.
And while there might be other token clubs and organizations, they might be perceived as being for those who lost out in popularity contests, and the plebians.
She was far too independent-minded to choose between letting (what she perceived to be) an elitist, ranked and exclusionary clique system “organize” her social contacts, live, activities and dress code - else be left out of much of the social scene. (She also had avoided the “popularity” game during high school, being very happy with a some looser, some tighter friends circle of 10 or so.)
My daughter was looking for a culture of primarily “egalitarian”, spontaneous social life among the vast majority of the student body, without systemic peer pressure (while realizing, of course, that even admittance to some colleges is anything but egalitarian.)
At the end, she enrolled in an Ivy League University, where <10% of undergraduates are Greek members, available to those who do seek it, but completely inconsequential to the vast majority of students who are indifferent.