If you can successfully predict what someone is going to do because it is always the most self-serving choice devoid of any moral considerations, are

@Carla I really think so too. It's like the "human" part of their brain isn't really there

@plungesponge but it is there. Flawed as it may be.
Equating this with other animal behavior is not a good comparison.
A sociopath absolutely knows that his/her narcissistic behavior can be damaging, and make the choice whether or not to behave that way.