Ending a contract with an agency that runs concentration camps is good. Better, though, is to not accept any contracts with any government that runs concentration camps.
Small steps are good. Big steps are better.
PS: great fear from all paying customers that run concentration camps that an internet mob could separate them from their code at any time -- sounds like a good policy to me. Not as good as "Don't be evil", but reasonably close.
Concentration camps were not solely the purview of the Nazis, and already had quite the history before they even came on the scene. In fact, while we're on the topic of World War II, the US government held people of Japanese decent in concentration camps during that war - which perhaps partly explains there's such an aggressive effort to make those camps a "Nazi thing".
The rest of the world doesn't have any obligation to help you hide from facing and interrogating your own history.