Indeed. There definitely seems to be a culture of "this is my airplane" when it comes to Ops agents. A good example is when they get on THE CAPTAIN'S airplane and start making PAs. *** is that all about? At least coordinate with the front end crew.
At the end of the day it's the guy or gal in the left seat who controls the parking brake and signs the log book. Hey, at least they give us crew meals on nine hour international turns.