It seems like they aren't supposed to, but they'll kill the Nomu, But they still regard Nomu as mindless puppets amd maybe not even human anymore, despite the increasing evidence that the high-ends still retain their personalities, !https://66.media.tumblr.com/a0d3bd36e50ac676ff5e77bcd4b8fba5/4bec9fc319bdcc1e-72/s640x960/4f3347f999ce5fd942b85c8153cb83e03ca49e3f.jpg But then again Hawks just killed Twice, and he's trained by the Hero Commision. I think that this is probably be something Hori's gonna go into more detail on soon