Is there a doctor in the house?

I made a loose analogy between the different stages of an aircraft maintanence engineer's career and a doctor’s career. Mostly about the pay and the responsibilities.
Some of u may think that we have more responsibility than a doctor. As a doctor holds a life in his hands each time he diagnoses a patient. A wrong diagnosis or unsuccessful surgery could lead to death. Our patients are airplanes. Unlike a doctor, a wrong diagnosis or repair can lead to multiple fatalities.

So where does pay fall in? If we hold so many lives in our hands should we be paid as much as or more than doctors? Again it goes back to the old supply and demand. If there is a shortage of mechanics and a great demand then pay will go up to try and attract and keep the employees. So what are your thoughts? Is there a doctor in the house? lol..