... because they earn what they get.
The two doctors I worked with during my son's recent, post-crash hospital stay were fantastic. One walked me through the CAT scan of his vertebrae, showing me in an instant what was what. He spoke with an authority and detail born of years of study, research and practice. The other diagnosed a complicated situation with one of his elbows quickly and competently.
Why shouldn't they be rewarded handsomely for their hard work?