Are there any examples of unethical human experimentation that actually propelled science in major ways?
I just saw a recent post about Japan’s Unit 731 during WW2. In short, they did unethical human experimentation where it quite literally did not contribute to science at all. None of their “projects” helped humanity or push science at all.
On the flip side, are there examples of unethical human experimentation in the past which actually propelled science in major ways? Questions that were answered that benefitted the human race as a whole?