oh, by they way, some of the experiments conducted in concentration camps under the nazi regime (iirc those specifically involving high altitude and whether to slowly or quickly warm someone who's been in freezing conditions) have contributed to science and the saving of lives across the world. were the concentration camps a necessary evil?
I don't know about the specifics of this, but that is totally different. Scientists use animals to experiment on, so that they can save human lives. If you test on humans, you're just eliminating the point of doing the experiments because you'll be sacraficing a human.....to potentially save another?
I'm willing to bet that those experiments could have been done on animals, but since we can't change history, at least those people didn't die for nothing. At least something "good" came out of their misery. With their sacrafice and the data collected during those awful experiments, it no doubt has led to many many more lives saved.