Unlike the cognitive abilities of a human being with emotion being a factor in our decision making, AI would not have that same decision making factor therefore the AI would act logically in any situation regardless of remorse, but I hope the coding would make it not resort to violence and lethality.
That description reminds me of a psychopath, who feel no such remorse when they did something wrong. Assuming we are talking of an AI that can think on its own, it makes me think if AI will be like that. They are intelligent, even more intelligent than the smartest human, but they are incapable of empathy.