Moralism Underminding AIDS fight

The Bush administration has required that any international anti-AIDS organization must renounce prostitution, or risk losing its funding.
Yet, many experts agree that this will make prostitutes less likely to practice safe sex with their Johns.
It seems to me that those nations such as Brazil that take a "real world" approach to fighting AIDS Is the most successful.
Conservatives who appose this approach are paternalistic, condescending, and are actually undermining the global fight against AIDS.