The Allies weaponizing penicillin was as morally wrong as appeasing Hitler by giving him Czechoslovakia on a platter , and for exactly the same reasons.
The Allies totally failed to see that giving everything to the mighty and nothing to the weak was exactly what caused the war in the first place: weaponizing penicillin was not going to win the war but rather cause Allies to lose the moral peace.
'Eugenicide with an English accent' was not a moral counterweight to Hitler's values, but merely an Anglo-Saxon cousin of his.
Henry Dawson realized, very early on in the Fall of 1940, that any cause willing to save the lives of its very weakest, such as the SBEs, even during a Total War, would be a cause worthy of dying for.
By contrast, any cause that was only a weak 'me too' of its enemy's morality wasn't going to get 20 year old infantrymen up and out of their foxholes with any alacrity when the whistle blew.
Justice is only truly just when it is as fair to the weak as it is to the mighty, as fair to the foolish as it is to the wise : but God knows it isn't easy to make each new generation of humanity realize this.
The Germans, Japanese, Soviets did have a cause they believed was worthy of dying for, perverted as it was ---- one reason why as individuals and in small groups, they were usually much better troops than any of their opposing Allied troops.
Interestingly, the free Polish troops were also considered to be braver than the other Allied troops : they knew they were going to have to fight very hard to secure the postwar fate of Poland - to keep it out of Allied Russian as well as Axis German hands.
They lost, thanks to FDR - but Dawson didn't.
Penicillin was de-weaponized , albeit only by loud public demand and against government wishes, and the Allies narrowly escaped being accused, postwar, having having caused a war crime of omission....