> If one works for a gun manufacturer, should they feel personally guilty when crimes are committed?

I don't think this analogy holds. You could use a gun to commit a crime, but you could also use a gun to defend yourself. On the other hand, if your CEO is talking about getting rid of all labor, well, you're kind of complicit in the crime if you keep working there. There's no ambiguity as to "what will this be used for", like there is with a gun.