Actively assisting a crime is very different than passively doing something a little wreckless.
Do you think contractors shred plans of your house after you hire them for a remodel? Or do they just throw them away in a dumpster, with your address on them, behind their offices.
Work ethics dictate a duty to other humans, not to corporations.
The two are sometimes the same, and sometimes very different. To the plumber point, if you work for a plumbing corporation which requires you to up-sell unneeded repairs, you have no ethical obligation to do so, and indeed, you have an ethical obligation to subvert that particular requirement.
On the other hand, you do have a duty to do plumbing right.
