My spouse is an engineer and we often talk about the engineering ethics module where students were taught to think about such things using examples like the Ford Pinto, the O-rings on the space shuttle etc.

If you had worked at Ford and designed, say, the steering wheel or transmission of the Pinto, you might well be excused for not appreciating the flaws in its design. But if you were one of the engineers that was asked to put the gas tank up near the rear fender where it was much likelier to rupture in the event of a wholly foreseeable collision, then you had a responsibility to consider and push back against cost-saving measures that were likely to jeopardize riders' safety.

In general, if a manager is telling you not to worry about something, it's shady.