So the goal is to have the least unqualified person there, and not a qualified person there?
Shrug. Resources are always limited.
We could put an M.D. aboard every fire truck and police car in the city, to render medical aid at the scene of an accident.
We could put a Ph.D. into every elementary school classroom in the world.
We could put a Nobel laureate into every college physics classroom --- oh, wait. No, we couldn't. There aren't enough Nobel laureates out there to make that physically possible!
When someone is pulling your broken and bleeding body out of the wreckage of a car -- are you going to refuse the help of the EMT-trained fireman and insist on waiting several hours for the coroner -- who probably is an M.D. -- to get there?