I'd have no problem killing these advanced AI, and I'll tell you why: because the developer would have to be an idiot to code an AI that resents being killed in a game where it gets killed. Nope, any AI that smart will be coded to play along. It'd be like:
AI: "Oh! Please don't kill me!"
Dave: "Gee, I'm sorry, I'll let you live."
AI: "Haha, silly Dave, you can kill me if you want, I'm programmed for that, I'm just funning you."
Dave: "Oh. You must be some pretty advanced AI, because you just outsmarted me."
AI: "Oh! Please don't kill me!"
Dave: "Gee, I'm sorry, I'll let you live."
AI: "Haha, silly Dave, you can kill me if you want, I'm programmed for that, I'm just funning you."
Dave: "Oh. You must be some pretty advanced AI, because you just outsmarted me."