Thanks to modern medicine, the HIV-positive are living longer, apparently healthy, but still doing the things that got them sick in the first place. They are infecting others. So, ironically enough, medicine is working at cross-purposes when it agressively treats the HIV-positive and those with full-blown AIDS.
Yes, medicine is working at cross purposes. But what I find rather amazing is the gross misallocation of limited resources. The billions we are tossing down the fudgehole to try to cure AIDS would be better spend trying to cure diseases one does not elect to contract such as cancer or heart disease or diabetes. {Yeah, I know some diabetes is lifestyle related, but I wouldn't spend a penny on "curing" that other than to tell people borrow a phrase from P.Diddy: Change (your lifestyle) or Die!