Nope. The Mirror-Spock was the only one immune to the evil. Like our Spock, he operated on logic rather than emotions such as greed and envy. In the Mirror Universe, Spock stood out as exceptional just as much as the scientific Spock did in ours.
Mirror Spock was left with the dilemma of a Universe running downhill, and whether it made logical sense to try to change it before it hit bottom. We all know how that would turn out.
Maybe.
Big maybe.
Actually, I'd say the Mirror Spock was worse than evil. He was weak. The logic that our Kirk shared with him on actively fighting the Empire was there all along, but Spock was willing to go with the flow as long as it worked for him. He didn't stop to think about it, so when the crew arrived from our universe he wasn't standing athwart history yelling, "Stop." He was as much a part of the Empire as Mirror Kirk was.
Which makes me think about whether I am doing enough to stop our own growing Evil Empire. That needs some serious pondering.