I’m pretty sure that 80% if what we learned from the Nazi/Imperial Japan super unethical experiments was “what can a psychotic doctor justify in order to have an excuse to torture people to death.”
Maybe 20% was arguably useful, and most of that could have been researched ethically with other methods.
It’s like the classic essay, “Why Jonny Can’t Code”.
I remember entering program listings from computer magazines into the Vic 20 as a kid, then modding them to make new things. But still, it was a minority of kids who had a computer back then, and even most of them (and myself most of the time) would just play games rather than write games.
The difference now is that everyone has a cell phone, but it’s still only a small minority that care.