There is a huge distance between "Doing the right thing" and "doing one's best to avoid getting sued". There are lots of things that are legal but frowned upon

There is a huge distance between "Doing the right thing" and "doing one's best to avoid getting sued". There are lots of things that are legal but frowned upon in a decent society. And no, Facebook is not "just engineers <...>". There are lots of other positions who make high-level decisions, e.g. decide how the company is going to make money.