I will say that a fairly large amount of people I know, including myself, have lost empathy and sympathy for patients. I've been a patient many times, in and out of the hospital. Before I really knew what doctors did during their day, I wondered "Damn, I'm in my hospital bed all day. I see the nurse like every 15 minutes for "x" amount of hours, but the doc comes in, like, never and when he/she does they spend like 2 minutes with me and jet". I usually didn't take it personally, but it really didn't satisfy me either.
Now that I've got a year of rotations under my belt I see things a lot differently. The docs didn't bounce in and out of my room because they could care less.... they had 35 patients to round on which restricted visiting time. It didn't mean they didn't empathize or sympathize with me, but it can look that way when your pressed for time and have to finish your list at hospital A only to go to Hospital B, then the office, etc. I can see how some patients can view this as lack of empathy, when in reality its just lack of time.
On the other hand, back to my first sentence.... I've lost empathy and sympathy for some patients, but for the most part regarding what service/specialty. For example, I probably felt the most empathetic/sympathetic on Peds... either for how sick the kids were or the parents they had (sometimes both). It gets hard to have those same feelings toward a patient that consistently has to have I&Ds done because they can't keep a drug needle out of their arm, or the patient with back pain coming to the ED who is "allergic" to everything except Dilaudid, then requests a specific dose (drug-seeker). If you can, than you must be mother theresa reincarnated.. but for the rest of us we're not and I think it's human nature to feel a little detached sometimes.