Are we talking about Wonder Woman? she's not your run-of-the-mill soldier, it's not kill or get killed for her, or it shouldn't be.
And the British probably didn't kill POWs either, there were rules laid down at the Hague conventions concerning the rights of POWs and regardless of whether or not they violated them, in the DCEU they don't have to unless you want them to
No I mean Cyborg is pretty badly injured when Steppenwolf seizes the motherbox from him, and then they rebuild his body with Nth Metal provided by Wonder Woman. I know very little about Nth metal but I know it's a thanagarian metal with anti-magical properties. In the dceu though, Nth metal could be basically amazonium with a different set of properties, I can understand why they wouldn't want to call it "feminum" or "amazonium". Also I just remembered that the costume designer mentioned the bracelets had a "supernatural kind of power" on DC all access