I wrote from the sweeter side of a man that finds pleasure in dominating women while making it clear that it is too the woman's choice, in the case of submission, to please the man in the only form he has now learned to recieve sexual satisfaction. I say "learned" because I believe that sexual preferences arise from or due to various aspects of life. The process of forming set (almost compulsive) behaviour is gradual and is obtained through learning (experience). Hence, in my opinion, there is more than one factor that leads to this mild or excessive sadistic behaviour.
I wrote this first-person paragraph on the behalf of men with the tendency to be warm as well as selfish, though it was mostly curiousity. I would love for someone to elaborate and add some more detail such in a way of contrast; "the woman is unable to move from the bed as rope confines her to the solid structure, her only..."