Say it anyway. If 10,000 service people decide to disobey (and, in effect, disobey an unlawful order), then there’s not much the boot-licking officers can do about it.
There are times when yes, you do disobey orders. (The Wehrmacht should be an example of an army that mistakenly thought its highest duty was to obey it’s Leader.)
The same is true for the population as a whole. Obedience is a weapon against us.