The short stick is all he needs to deal with Princess. And besides, a little something like death wouldn't take out the spirit out of Arms Slave or the Sweepers. Besides, there are those in the Sweepers who actually uphold the ideals and creed of the Sweepers. Arms Slave might not be one of them, but he likes their ideas even if he can't live up to them.

Besides it's not as it Princess has any moral high ground. She hasn't exactly been fighting on behalf of justice or even revenge. The Sweepers might be misguided and their top leaders selfish at best, and corrupt at worse, but that's true of any organization. The Sweepers are the heroes Deep Ground needs, even if they aren't the ones Deep Ground wants. An organization of the weak, lonely, foolish, vile, insane, and apathetic. Variably, quite possibly an army of thieves and whores.

A fitting band of misfits for a black guild, doncha think?