Considering she killed lots of demons, whose corpses Adlet saw while walking around the town, I'd say she's not against fighting the evil. Of course that doesn't mean what you said couldn't be correct otherwise. She might be killing everything that gets in her way, good and bad alike. It's also possible she was being targeted by the hero killer, unsuccessfully, and she had to keep slaying henchmen and such. Or perhaps the hero killer spread lies about her, and real heroes went after her, believing those lies. After all, the bunny princess might do the same thing now after what the new dude told her.