The profession of medicine is duty-bound to further the best interests of the public. If evidence suggests that discrimination based on sexual orientation or denial of civil marriage to GLBT couples has adverse effects on their health, physicians must oppose such practices, regardless of their personal biases.
Unclear regulations and informal data gathering on immigrants who receive or donate organs can cause mistrust and suspicion of the organ allocation system and affect donation rates.
A physician has an obligation to order necessary diagnostic tests for a patient on Medicaid with whom he or she has an established patient-physician relationship regardless of whether the cost of the necessary test will be reimbursed.
Immigrant patients are often bewildered when they need to seek health care in the U.S., and that care usually comes from physicians who are unsympathetic to their plight.