When the pain is great enough, we will let anyone be doctor.
Quacks are a part of our culture, and we all fall prey to them. Who among us can say, for sure, that even our own personal physicians are honest and competent?
High street homeopaths, who typically do not have any serious medical training, are allowed to treat you and me for almost any condition.
When patients reject official advice and proved medicine, they become more susceptible to quackery.
The doctors allow one to die, the charlatans kill.
Imprisoned quacks are always replaced by new ones.
If you play a doctor on TV, you probably shouldn't try performing surgery.