In Laws, Plato wrote that there are two classes of patients, slaves and freemen. And, similarly two kinds of doctors: slave doctors and freemen doctors. Slave doctors run about and cure the slaves, or wait for them in the dispensaries; while free doctors attend and practice upon freemen. They carry enquiries far back, and go into the nature of the disorder. They enter into discourse with their patients, instructing them as far as they are able. For the full quote go to: Download Plato Physician .
So, what has changed since Plato made this observation?