The main character currently reads as a completely heartless and violent person whose only motivation is a feeling of power. While you can certainly do this, if the story leads onward to simply more mindless bloodletting, it's not a story that will interest me at least. Nor will it be believable if he swings from infanticide to "goodness" in a single chapter.

Him being faced with his opposite (i.e. someone in his household who shows mercy and is not drawn to power) and his reaction to that would be interesting, or a slower transformation of character.

Will be interested to see where you go from here.