Freelancing in Medecine

I do not understand what is in this world... but why does it seem to me that this niche is not normal, that a doctor for a normal earning has to go on three jobs! When a person does not rest, his productivity decreases. Remember how many times have you yourself started to confuse the simplest things from lack of sleep or fatigue? This is fucking doctor! A person from whose physical and emotional state depend on the lives of other people. After updating the day, he should rest for 3 days, get distracted from work, sleep, read professional literature and come to work with fresh brains. In fact what? And then we wonder why so many medical mistakes...
Will a sleeping pilot or air traffic controller be allowed to work? Unlikely to. How is the doctor different?
Stop the earth, I’ll go down.