Where? As far as I saw there was one bank that thought it was obeying a discreet request from the government, and a bunch of banks where traders said usual trader nonsense (which is "malicious" in a sense, but it's very much part of the norms and culture of trading and the expected functioning of a market, just like a good lawyer should make their case as strongly as possible regardless of their personal beliefs about what happened).

> even if all things considered the latter manage to harm millions of people with their actions.

Who was harmed? If there was any effect of Libor fixing, it was likely that people paid slightly lower interest rates on their mortgages.