I leaned once that in ancient China they paid family doctors a monthly free, unless someone in the household got sick, then the fee was not paid until everyone

I leaned once that in ancient China they paid family doctors a monthly free, unless someone in the household got sick, then the fee was not paid until everyone was healthy again. Doctors did due diligence on their clients and advised them preventive. They did not want sickly households. Also the incentive is on keeping the whole house in good shape. I learned the opposite once: never let a capitalist near your health care program. They make money when you are sick, and stop making money when you are healthy.