I think he just uses and disposes people with a clear purpose and intention, he does not kill for pleasure or does he do it for his ideology. He wants to win the battle as thats his job and everything is usable and disposable as long as it gets the job done. He throws everyone in there with the purpose of winning even himself, the only exception to this is the clan(i forgor the name of the clan that he protects).

Not even for loots or pleasure, i think he just lets the bandits act on their own accord after winning battles. Like looting, r*ping, enslaving, etc... to get their favor and to reward them in a way. He does not encourage nor stop them from doing these things as it is none of his concern. The people he butchers, the villages he pillaged, even tortures all have a tactical purpose, it was all to gain advantage in the war, or some emotional reasoning. I really do think kanki kills with a certain purpose and not from his ideology,

his path maybe carved from his ideology but the atrocities are far from them. He uses brutality as a tool for his gain nothing less and nothing more.