That's the entire question.
But the devs gave the option. I did take the option to see the scene (before going back and chosing the other option) and I did find it hot.
But as
Ragnar also said, Zaton's job is just to take the settlement. The General opposes that and therefore he must go. But while he does not appear to be an entirely pleasant person, to put it mildly, just stabbing him in the neck would also have solved the issue.
On a Macchiavellian level, does raping Kitty and brutally murdering the General give Zaton any future advantage? I don't really think so.
You have to quote the whole sentence: "It may be unfair but "guilt by association" is a very common thing".
It's a human condition. Sometimes you (as an individual) agree on this "guilt by association", sometimes not. I guess it depends on the circumstances and your own opinion on these circumstances.
But perhaps I should have expressed myself better...