I think this is a matter if Karama's personality. He needs people, and he doesn't blame all people, just this one, who was "guilty" of betrayal, especially since at the same time there was another one, who was a good person.
Thanks for reading
In a Cardassian library
or in a Cardassian gallery
"Reagan, it appears, is really only an ardent unionist if the unions in question are in Poland" - Stephen King, Skeleton Crew