Honestly, I'm pretty sure the one who decides when #6 gets points is that evil general with a crush on him. So the only times he is considered evil is when he does lewd things to girls who aren't her
Huge respects to this MC for not letting the boy finish xD. Common mistakes of protagonists is that they let the other side finish talking, but I see that he's a man of culture, lol.
I just would have let the boy die. Or at least removed his arms if I kept him alive. They have the technology and knowledge to learn how the weapon works without him.