Haber did not develop the Haber process to produce fertillizer. He did it precisely because German access to saltpeter from South America had been cut off and that threatened to severely compromise the German capacity for war. This was not a case where Haber’s work was meant for benign peaceful purposes and misappropriated for use in war. It was used exactly the way he intended it to be. It just happened to also be useful for keeping half the planet from starving to death. His wife did not kill herself because his work was misused. She killed herself because it was used exactly how Haber wanted it to be. And he can’t advocate for the use of Chlorine as a chemical weapon and have clean hands by definition.

Which is why I said that the only reason he was mentioned is because the Haber process ultimately saved the lives of billions of people arguably outweighing the harm that process was developed to enable. Haber wasn’t a good guy by any stretch of the imagination but without the Haber process, we would have had famine and death on a scale never seen in all of human history on this planet.