I would agree in most cases that's true, but that's assuming everyone thinks it's evil. In this scenario, where there's a well established dictatorship, there are likely plenty of people brainwashed well enough to think they're doing a good work for their country by taking such a position even when it means constantly lying.
Not that I wouldn't still be a piece of crap for taking such a position, but there are situations where even when people stop making the "someone's going to do it" excuse there will be others that have their own reason to do it anyway.