I'll never forget that one of the first things we were told in our "soft skills" course 1st year in medical school was never to interrupt a patient. As though that would be possible with a chronic pain patient, or a manic patient. What's going on is a phenomenon of "doctor guilt," just like white guilt. The philosophy in modern liberal society is that in any interaction, the more powerful person, the wealthier person, the person with more authority, the "higher," is the bad guy, and the "lower" is the good guy. For a doctor to be firm with a patient, to tell him what to do, or tell him "no," is seen as a marker of paternalism, of the bad old days of authoritarian white men with their boot on the neck of everyone else.