I've noticed this is pretty common even within earshot of awake patients in all settings. I'm glad you posted this because it kills me every time. We had one physician who was pretty bad about this and we had trouble keeping him booked because no one would ever follow up or return for new problems. People can pick up on your attitude about them, and if you in general hate everyone and talk shit about them, it's usually leaks out pretty obvious in your interactions.
I have never gotten good feedback from management in regards to this. It has always varied from some version of "get over it" to them actually participating in it. I'm just one person, so I do what I can by not participating, but it not much. It sucks though. It literally pains me to hear it.