This is a bit chicken-and-egg. People are uninformed about cost and quality of healthcare because the third-party payer system obscures detail (often intentionally).

Spend some time uninsured and you become a very discerning consumer.

Further, for every service that requires healthcare advocacy (often provided by family members, btw, not professionals even in existing system) there are probably >five that are commodity services (labs, prescriptions, diagnosis, imaging, etc.)