He's got the money to suppress the virus. Not erradicate it, but keeps it from fucking his immune system up anymore.
And exactly what does that tell you? If you suppress HIV long enough, it dies? Maybe. Not enough people with the means to get long term treatment exist. It's become a poor people's disease. A junkie's disease. Let's draw another parallel: The Vatican loves poor, third world countries. Countries where condom use is minimal while HIV and AIDS are approaching epidemic proportion. And yet the Catholic Church still condemns condom use. So when the poor are all gone, the rich will come back to the church with their money...
.... people can have HIV for a while and still be alive. My uncle has had it for 20 years. Well granted it's full blown AIDS now but he's still alive.