I think there have been some great advances over the past decade. It's hard to judge day by day. Lasers can now correct vision, and much more effective in various skin conditions that needed topicals or other drugs before. There's a chicken pox vaccine available now, and a shingles vaccine in the works. Like BruceLee mentioned, AIDS is regarded as more of a chronic disease than a death sentence.
On the hair loss front, follicular transplants are also fairly new (I don't believe they were commonly performed until the mid 90s). FUE is only a couple years old. And future drug and cloning research looks promising.
If you regard a breakthrough as a cure or vaccine to diseases such as Alzheimer's, MS, Parkinson's, AIDS, herpes etc then you're right. But if this was 20 years ago, I would still be wearing glasses or contact lenses and there would be no medical or viable surgical treatment for my hair loss.
