Doctors make their money by cutting you or selling drugs. Hospitals would be there to set bones or give stiches, and deliver babies.
There is no money in healthy people
The question is completely mercenary and vile. It reinforces my belief that there is no collective human enterprise in the world eviler than Goldman Sachs. With that said, there is actually a way to make money on curing a disease.
Whomever comes up with the cure for ‘x’ disease, gets a percentage (higher at first, declining over 10-20 years to 0) of the costs that government insurance (medicare and medicare) and private insurance companies shell out every year to treat ‘x’. Plus the company, school, or researcher that discovers the cure gets their compensation for the cure itself.
Incentivize a cure, reduce costs over the long term, and leave residual cash flow for the cure. Everyone wins in the long term.