Not necessarily felt emotions, but after spending that amount of time with Fajo Data knew he would continue doing the absolute vilest things possible for his own personal benefit up to, and including, remorseless killing of his own underlings. And he’d be able to sleaze his way in and out of justice so there was no moral point to taking him to the law.

Side note, if you haven’t already you should look up the side-by-sides of him and David Rappaport, the actor originally cast in the Kivas Fajo role who had to be hurriedly recast after Rappaports attempted suicide