It's not just doctors and patients who can be ***wipes.
When I was a high school administrator, one of my duties had an official title, but in house I was in charge of dealing with obnoxious parents (we actually had a different expression). Let me just assure you that folks in any role (eg: parents) can be obnoxious.
To stray a little further from this topic, let me add a philosophical comment:
I had that duty because I was good at it. I could be relaxed, LISTEN, and I had the power/authority to do things. But, mainly, I had this view that the most obnoxious parents could end up being our greatest supporters, under the right circumstances. I was proven right quite often. I would do something to help them, and for the next few years I (and my school) walked on water as far as they were concerned. The parents who didn't give a rip were a far greater source of frustration.
Not sure of this has anything to do with doctor/patient attitudes. Maybe.
Mel