"Systemic" doesn't even have to be left/right though, that's the point. It can simply be well-meaning people that keep ignorantly doing things they way they did before, unaware that their system has racist/sexist impact.

I don't know what you mean by social engineering, by the way. I've only heard it in the context of hacking, like calling customer support and pretending to be someone else to try to get their mother's maiden name or whatever.