Omg seeing him gassing everyone! Choo Choo all aboard the descent into madness.
I'm kinda curious now to see how it is all going to pan out. It really does feel like a debate on perceived morality. His actions on a personal level may be objectively bad/evil, but it has rather far reaching consequences which finally 'may' fall on the side of Justice/good. The teachers probably want him to have an attitude of just saving the person in front of him. But in his conquest for maximum efficiency for goodness, he is more concerned with saving the millions by eliminating the few.
But like in all stories it's a slippery slope, where most end up becoming the very thing they set out to destroy.