Beags:
I doubt whether there is a suitable Latin equivalent
Perhaps because the Legions would never dream of going to war with knowingly not-fit-for-purpose Ballistas, for example? Nor perhaps would Nelson (re ships rather than Ballistas of course), who famously turned a blind eye to a direct order in order to do his duty. A complete reversal of the modern practice of turning a blind eye to one's duty, in order to obey a direct illegal order! I agree that the concept would have been anathema to the ancient world. So perhaps they did not have a word for it after all, as you both say.