I really do not think that the vast majority of GPs are thinking only of their profits. I think you have got that wrong. I am married to a retired GP and I can assure you that he and all his colleagues cared about their patients, well-being. Like all of us, they made mistakes, but that is nothing to do with seeking only profit.
I have found getting older to be a challenge and have been afflicted with lots of health problems at a younger age than I might have hoped - and of course OH has PD, which is not a walk in the park. But we have wonderful family, enough money to live carefully but comfortably. I would love to feel better than I do, but, on the whole, I think that people are trying to do their best for me.