I have been undergoing treatment on the NHS, and I have found over the years (its been 5 years), that medics are the most arrogant bunch of people ever.
You get the odd nice one, but for the most part many of the senior consultants seem to be very still faced, less smiley and very unapproachable. Before undergoing treatment for example, I ran into problems with a senior consultant, where, in order to get treatment started I had to basically get my local MP involved. It brought her back down to earth, and as a result treatment started.
As a patent, I just take it, as afterall they are treating me, but for the most part it is very annoying.
I am not a medicine student, but it would be interesting to hear if there is an arrogant culture within this field from those that have done placements in the field.