So here is to the nameless, rotting in some oubliette, making mistakes, so others can return to theire familys at night, a secret brotherhood of servants to ruthless masters.
Cheers.
> The only thing that prevented an explosion was a mistake in the attackers’ computer code, the investigators said.
> The only thing that prevented significant damage was a bug in the attackers’ computer code that inadvertently shut down the plant’s production systems.
Red Star Airacobra: Memoirs of a Soviet Fighter Ace 1941-45: v. 2 Evgeniy Mariinskiy Kindle book.
Of course, there are many more: the brief resistance on D-Day from many non-German troops counts, the betrayal to the British embassy of Germany's rocket program, the Garbo mission (main agent betrayed program), Canaris maybe betraying Hitler from the start, Heisenberg's "miscalculation" and slowness that killed the Germany Atomic Bomb program (along with his offer of mutual sabotage to Bohr), etc.
That's globally. I imagine the sense of responsibility decreases in ethically-gray areas like nation-state warfare against adversaries, and among developers working in strongly hierarchical, military(-esque) environments, for autocratic regimes focused on destroying national/ethnic/religious enemies (as this appears to have been done by).