She doesn’t understand why she didn’t save Hammer for interrogation. She
should have done that, if only to make him reveal the identity of those who 
hired him. Sure, she already suspects that Adama’s competitors hired him, but it
would be good to have confirmation. She could just as easily have killed Hammer 
after the interrogation, and she’s somewhat surprised that Adama didn’t suggest
it. Most Triad leaders she’s known, especially Red Poles, those in charge of
enforcement, have been big on symbolism. Few things are more symbolically 
endowed than leaving the torture-mutilated body of an enemy’s assassin on the
enemy’s doorstep. In some parts of the world, that’s standard practice. Doing
anything less would entail a serious loss of respect.