You wouldn't want your airline pilot to be sleep deprived so why would you want your doctor to be? Unless you're a field medic in the army or whatever. No thanks.
While I agree with you, I have to words: Doctor shortage.
At least in the US, we need more doctors. Many of the doctors with whom my wife works all see dozens of patients every day, leaving them with mere minutes for each of them as it is. A 2-minute turnaround is very common, especially in the internal medicine / family medicine fields. Too many patients, not enough doctors.