While some of that might be true for some countries with publicly funded dental care, it’s certainly not true for regular healthcare. Doctors are paid fixed salaries, there’s no incentive for them to perform unnecessary procedures. Quite the opposite in fact, departments have strict budgets and so they have a strong pressure to ensure all procedures are medically justifiable, and cheaper / simpler / preventative options have been tried first.

Source: Also a European, spouse is a doctor