You don’t understand medical economics. It does not make sense but American physicians will not accept lower incomes, particularly highly skilled limited access specialists. PCPs might but not specialists.
If your "understanding of medical economics" is derived from your two daughters being MD's well I will see you and raise you in that my two younger sisters are both MD's One an internal medicine specialist, specializing in geriatrics and the other a Psychiatrist
All you did was re-state this "Dr's will not accept lower incomes" but in no way explained the logic behind your contention that you can make MORE money by having LESS customers.
That fewer number of patients your daughter's would have, if they get their way would NOT "automatically" pay more than they would otherwise, the end result being that they will then make MORE money or as you put it "accept lower incomes.
How much a DR. gets per patient is determined by an insurance company.
It just is
As such for all practical purposes Dr.s work for insurance companies and this has been true for decades now.
Also few DR.s especially your "highly skilled specialist" work in circa 60's "Marcus Welby" private practices and that has been true for years and years now.
Also these days most DR.s , GP/PCM or some kind of specialist, be it Internal medicine, OB/GYN, Ortho or general surgeon or more specialized like CV s work for some kind of "healthcare company" be it an HMO or a "hospital system" which in addition to have a hospitals or these days often hospitals (plural) also have GP/PCM clinics and now often "urgent care clinics as well.
These Dr's are quite literally employees who with few exceptions where they are on fixed salary like at the Cleveland Clinic do essentially "piece work" and they do NOT control the number of patients they have or can pick and choose based on how much or how little they pay and often do not even know that.
Even those few rare exceptions of mostly GP's still in truly "private practice " are still being paid by insurance companies and they can "want" 500 bucks for an office visit or 5000 for some procedure but if Aetna or Cigna is only going to pay 350 and 3500 respectively that is just how it is.
You have FEW exceptions like Plastic surgeons or "eye Dr's'" who do LASIK where insurance is not part of it but those are the exception. Less than 10% of the total population of DR's