Eight days after the execution of Amir, I can see a lot of people from the capital coming to this place. I think I know the reason why they are coming here. When Amir is about to get executed, he admits his crime and even admits that he is doing it of his own volition, and Lord Benham does not know about his action.
It was a good political maneuver, I think.
While Lord Benham still gets some black spot from what his vassal has done, he gets the benefit of the doubt that he truly does not know about Amir's crime. Just like I said, he still got a black spot because he did not know about it.
The others will not see that Amir expertly hid his side business, so the others don't know about it and will blame Lord Benham, but with that 'willing' confession, Lord Benham will get away with only a small black spot in his record.