why would a doctor cure you if their whole business depends on keeping you hooked on their medicine?

But at the same time, They need to cure the patient,so they can attract new patients... This game looks very tricky😀

There are enough sick people. They are not dependent on one person only.

Supply demand logic, especially in good private hospitals. As long as the hospital is able to provide good quality service and Survival and recovery ratios look good, they earn more if they clear beds faster.