You display much understanding of the world we live in. As I find myself commenting lot lately when people just can’t understand the way people treat other people, . About the first explanation I received of soul contracts: “Meredith’s conception of God, or the Great All, and how we and our souls fit in, is that when our souls leave the Great All to take human form we contract with the universe to experience certain painful things on Earth that are not spiritual so we can learn what is spiritual (love, kindness, compassion, charity, etc.)”
That requires “bad” actors, such as the narcissist you are discussing and many that I have encountered.