Our lawnmower repairman is the same as a doctor. He prays for rain so the grass will grow faster, and mowers will break down sooner. I suppose conflict of interest is common in many professions. Accountants benefit when you get audited. Lawyers like when you get sued.
Police departments get more money when there is more crime.
The military gets more power when there is war. And doctors get more patients when there are plagues. We all really know this about these professions. But life would be too anxious if we never trusted anyone. So we all find some professional we can trust.