Well, there was Little Orphan Annie!
Seriously, these kids were given a death sentence when their parent(s) engaged in the high risk behavior that gave them the disease. Anything that would have mitigated their symptoms, either for their direct benefit, or the suffering that their foster families had to endure was worth it.
Strip this down to brass tacks, and all boils down to is potential ambulance chasing by a pack of lawyers that should all be dead of AIDS themselves.
Given nobody has proven HIV causes AIDS, I don't see how poisoning kids with DNA chain terminators provides any benefit.