Angels in America is a massive critically acclaimed miniseries, and its main plotline is about AIDS victims during the 1980s.
Rent remains a cult show at the fringe (quite literally) of Broadway, and features one AIDS death and three of the other principals are HIV+.
The Boy from Oz is about a performer who died of AIDS. So is Taboo (well, one of its plotlines is). And Boy from Oz, at least, seems to be a certifiable hit, and rakes in massive cash for Broadway Cares / Equity Fights AIDS.
Is it possible that theatre's doing something real about getting people thinking about AIDS as a serious problem?
I think theater always has. Whether on teh satge or behind the scenes, theater people as a group, jumped on the issue early on and began doing something to help. Broadway Cares Equity Fights AIDS has been around for quite a while. Long before there were movies that dealt with AIDS, there were plays that took on the subject. Theater has always been ahead of every other industry.