some know damn straight that they are manipulative to the point of being pathological liars and they know it willfully. And, they continue it all knowingly.
While others are manipulative because they learned crappy life coping behaviors based out of complete ignorance and devoid of compassion and empathy for the human race let alone themselves. Many wander aimlessly not understanding their own motivations and in strange ways justifying their behaviors.
Yes, they all manipulate in some way and in many different ways.