I heard is not politically correct because that is the doctors job, to give a good service and they are not expecting any kind of reward for that.
Doctors should never be influence a medical care by receiving gifts from any patients because what they do it is their job period.
I disagree because the moment a doctor do not charge a patient for their consultation because the doctor knows the patient very well here is where I think the patient should give the doctor some kind of reward a gift in this case, even if the doctor won't want because what doctor do not charge their patients when a consultation is expensive.