I have type two diabetes. I take a couple of pills a day for it, along with a couple of shots of Byetta -- which I understand will soon be available as a weekly injection -- and my blood sugar is in a happy, healthy place. Losing weight would be a good thing (as well as a hard thing to do), but modern medicine is keeping me relatively healthy. I'm fortunate to have a good job and a good health plan that subsidizes the cost of these drugs, of course, but I'm immensely thankful that the pharmaceutical industry has developed them and I don't begrudge the fact that they're making money on them. I also know how much it costs to bring a new drug to market, and it isn't cheap.
I want us to keep developing newer and better medical treatments. So does Dean Kamen, who is a very smart man. :)
(If you haven't heard of him for anything else, well, he's the guy who invented the Segway. And a bunch of other things that are arguably much more useful.)