I completely disagree. It's important to teach them to time-box and have the self discipline to try and control these things - but participation in the social structures of peers and society during the formative adult years is crucial to developing the social skills of being an adult. To dismiss them as meaningless is very naive.

Arguing that the social heirarchy is meaningless is utter nonsense because our work structures, family structures, political structures, friend structures, distribution structures, financial systems AND ENTIRE CULTURE is built upon social hierarchies, and while you might argue that the social heirarchy at high school is meaningless once highschool is over, the skills gained in navigating it will persist through the persons entire adulthood.