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Trov: The problem is that these 'upper management' (*coughthebrasscough*) seem to be willing to use the same tactic that made them rage in the first place.
Unless this is that one guy's lone decision, and his boss/the squad beat the crap out of him for trying that route later, this is just them being hypocrite.
"Our bro's imouto got raped and kill, let's try to rape and kill this girl and see how the hero react!"
Frankly, this seem to be author trying to setup a sort of 'demon country' solution where it's ruled by demons with some sense of moral who'll handle dealing with dangerous demons in return for other countries not trying to kill them. i.e. Shin's squad level of power that's not affiliated to any country to deal with Gus's concern that other country won't take it ell to Earlshide's achievement.
But when despite their past they're fine with using the very same cowardly/villainous tactic....it just doesn't work.
At least Strom seem consistent on his part, he wanted the Empire destroyed, both commoners and nobles, and after that's done he's back to his researcher mindset. He probably know his subordinate is planning something, but that's not his concern.