@umbra21 - Honestly, I don't know much about this particular case, but I always wonder if these kinds of doctors would feel like this about all people and see them as means to an end. He just happened to have easy access to this particular marginalized group who suffered from this particular problem.
And, to be fair, the women would have been suffering from the condition before he tried to cure it. It's a horrible condition and one which many women still suffer in places where they can't get proper medical condition. They essentially have no control over their bladders, because they have been torn up.
He may have been experimenting, but at least he didn't inflict the condition on them in the first place, as is often the case in controversial medical trials. And he came up with a way of fixing it.