Epstein was friendly with, and made more people smile, than he raped.
Phil Spector produced music which meant a lot to a lot of people. Still a murderer.
Harold Shipman Saved the lives of thousands, yet should always be labelled a mass murderer because he knowingly positioned hundreds.
Billions. The total carrying capacity of the Earth maxes out at 4bn people, even with maximally optimized agriculture and a vegetarian diet. The extra half of the Earth's population today owe their existence to Haber-Bosch.
It really was a two-man team that discovered nitrogen fixation - the other being not Carl Bosch, but Robert Le Rossignol who assisted Haber in developing his bench-scale nitrogen fixing reactor. Carl Bosch led the team that scaled it up, and that was a large effort of hundreds of people.
>Harold Shipman Saved the lives of thousands
Probably not though, I don't think a typical GP saves thousands of lives