No one is above the rules.
Why does this stuff happen? Because from the time these kids were a head taller than everyone else, form the time it was clear they were the best on the PAL or CYO team, EVERYONE has kissed their butts. I've been around youth ball for a long time, and you see coaches and parents fawn over the best player(s) like they were some kind of god. I've seen the best kids put or put on displays that would never be tolerated from a scrub, and they get away with it. If you even look at ourselves, if you go to an alumni event and former players are there, even old men line up to rub shoulders with a former player they hardly or don't even know. So many of these kids grow up thinking and having it reinforced by authority figures that they have a different set of rules than everyone else. If that's the case here, then kudos to Lavin for having ramifications for crossing the line. The trick is for Lavin to let the player know once the discipline is imparted, there are no after affects, and the kid is welcomed back in the fold.
My son goes to a high school with strict rules in part reinforced by the ROTC presence there. at an open house 4 years ago, I asked a kid what happens once the infraction occur and discipline is over. Some area Catholic high schools have demerits that stay with you for 4 years (Marianists for one). The kid laughed at me and said "Nothing. What do you mean?" I explained and he said, "Once you do your JUG (Justice under God - some detention related activity) it's over.
So it's important for Lavin to just move on after the suspension. In the most celebrated case, Harrison, Lavin appears to have done just that, and Harrison is responding wonderfully.