I hate Gate Lice and Cell Yells about equally. However, until someone comes up with an injectable cure for self-centeredness/selfishness/narcissistic personality disorder, good luck stopping either. Personally, I applaud any airline employee or fellow pax with the b*lls to confront these people and make them change their obnoxious behavior.
There are just plenty of people who don't like the social order or rules of any kind when either means THEY don't come first.