Primary care will always be paid pittance compared to most specialists.
Our medical system has grown very fond of measuring worth by volume, and valuing procedural work over cerebral/social. Primary care is low volume social work.
Family doctors are essentially gatekeepers, and most of their work is seen by the bureaucrats to be necessary, but pedestrian, hence the rise of noctors.
The RVU committee is mostly proceduralists, so of course the procedures will get higher remuneration.
Practicing true family medicine is a cost-prohibitive affair. Those that go into family medicine generally choose not to practice it, instead opting for encroachment on other fields such as emerg, pain, derm, cosmo, etc.
The idealistic save-the-world mentality of academic primary care zealots runs counter to the trend of specialization and to the interests of medical students. Medical students do not see this as inspiring but instead as delusional. Academic family medicine departments are often seen as laughing stocks by both students and staff.
I say we just let the nurses have primary care. MDs don't want it. IMGs want it because its their only way in. Nurses are cheaper. Most of it is cookbook. There's the savings.