I don't think so. He's just lucky to be a high profile celeb with lots of money who just happened to catch it when new, and successful drug regimes were being developed.
Larry Kramer is another in a similar boat, still reasonably health 25+ years in. I'm sure there are others too.
HIV drugs have become so advanced that people with the disease are living much longer than usual.
Although HIV infection was once considered a certain death sentence, research published today shows that the average person infected with HIV in North America can expect to live to the age of 63. Gay men with HIV can expect to live even longer, to an average age of 77, according to the findings published in PLOS One.
In 2009, the average life expectancy for a 20-year-old American man in the general population was exactly the same—77, the study reported.
“[It is] nothing short of miraculous, given where we were 20 years ago,” said Dr. Mark Smith, who treats people with HIV and also serves as president of the California HealthCare Foundation. “It's a stunning success story for biomedical science and has contributed greatly to our understanding of other viruses and disease processes as well."