I'm not sure why software would be any different. Bridges are complicated and made up of versatile submodules, just like software. Some other software engineer eventually designs the "bridge" and selects "beams" for the structure. If those beams fail to meet their specs, then the engineers who stood by them are at fault. If the bridge fails because the beams weren't used in accordance with their spec, or didn't have a spec at all, then the engineers who approved their use in the bridge is at fault.
EDIT:
Forum the original OP:
> Software engineers are accountable to their bosses before their users, no matter how high minded we like to pretend to be.
They are accountable to themselves and their own conscience before both their bosses and their users. I understand this is an uncomfortable line of thinking if your employer asks for ethically questionable project work, but I’d argue that if this is the case for you, it warrants career introspection.
So, the engineer writing a binary search, knowingly working on “Project Orbital Death Ray” or “Voter Suppression 2.1” should know better. I hope we can at least agree on that one.
The engineer writing a linked list or moving around Protobufs for their some open source toolset gets a pass because their project as they understand it is ethically neutral. BUT there will be that engineer who then takes those tools and integrates it into “Project Orbital Death Ray”. That’s maybe where accountability should begin.
Everyone’s talking about the managers taking the blame and yes they’re culpable too. But at the end of the day an actual software developer’s fingers type the code in. If that developer knows what he is working on, he needs to bear the responsibility, too.
Software isn't a bridge and comparisons fall apart quickly.