Health care didn't get expensive until government got involved.
Doctors used to do house calls and would charge what the patient can bear. They even would take livestock in lieu of cash.
I went 10 years without insurance and saved $100,000+ in premiums. My wife was hospitalized for a week, went to the hospital in an ambulance. The bill was over $100K, but when they found out we had no insurance, they offered payments on $16,000, which we paid off in installments.
When I went to a clinic for care, they charged me $65, or about what a plumber charges. For lab tests, I was charged $150.
The entire cost of my daughter's birth in the early '80s was $2800. That was for the deluxe birthing suite.
When patients are empowered, they will choose care they can afford. Why pay $50 for a flu shot from one doctor when another charges $30? Competition drives costs down (see auto insurance ads on tv), and drives innovation (to maximize profits).