"Engineering culture is about making the product. If you make the product work, that’s all you’ve got to do to fulfill the ethical warrant of your profession. The ethics of engineering are an ethics of: Does it work? If you make something that works, you’ve done the ethical thing. It’s up to other people to figure out the social mission for your object. It’s like the famous line from the Tom Lehrer song: “‘Once the rockets are up, who cares where they come down? That's not my department,’ says Wernher von Braun."

So I think that engineers, at Facebook and other firms, have been a bit baffled when they’ve been told that the systems they’ve built—systems that are clearly working very well and whose effectiveness is measured by the profits they generate, so everything looks ethical and “good” in the Google sense—are corrupting the public sphere."

https://logicmag.io/03-dont-be-evil/