Kaz reads as cruel, calculating, and cold—just as he threatens Geels’s lover, he leaves Bolliger to die. And listing all the charges the Black Tips have racked up tonight suggests that Kaz cares about getting his money, and he's willing to do truly horrific things in order to get it. Inej, on the other hand, seems motivated by kindness and compassion. She doesn’t want Kaz to die, of course, but she also feels bad for Bolliger and doesn’t think it’s okay to let him suffer. However, for now, her loyalty to Kaz wins out and she leaves him to his fate.