Imagine if medicines and medical procedures would contribute negatively to the GDP rather than positively. I mean, they are there because something went wrong

Imagine if medicines and medical procedures would contribute negatively to the GDP rather than positively. I mean, they are there because something went wrong before, leading to the need for them. By having them as a cost, the incentives to avoid them are put in place, so suddenly healthier foods and habits become more profitable. The problem is that medicine should not be an industry, it should be a cost centre, and the more unhealthy something is the heavier it should be taxed in order to pay for that cost.