Enrico Feryou
The little-known "counter-genius" to the infamous selfish-and self-promoting "fer me" physicist dude who began development of da whole nuclear-power/warfare mess.
Enrico Feryou was all "for you" --- i.e., he truly cared about the welfare of his fellow humans, not just about himself and his super-rich cronies --- and so he wanted to put a stop to nuclear research because it was too dangerous to the environment. Unfortunately, he had no "big business" backers the way his much-more-popular "fer me" counterpart did, and so his efforts to halt the development of atomic power and The Bomb failed, with predictable --- and horribly tragic --- results.