The relationship between health professionals and citizens changes along the time, under the pressure of social modifications. Among other elements, ethics is a relevant factor of change in the relationship. The social consensus on the good practice of medicine has assumed a different outline, according to the value
which has assumed a leading function: the patient’s good (ethical principle: beneficence); or the selfdetermination of the subject (ethical principle: justice). The promotion of the empowerment of the citizen is the ultimate model orienting contemporary bioethics.