Sociopaths use antisocial behavior to gain interpersonal power over others, which serves their chief interest: To control others, and to use this control to amuse and serve themselves. They do not want the same love and affection as non-sociopathic people do, rather they pretend to love and care for others in order to achieve power and control over them.
We all have a drive for interpersonal power to more or less degrees. Some people only wish to control their own lives as much as they can, and seek only to guide others they come into contact with. Some people desire more control and are seen as dominant individuals. These individuals tend to be the center of attention at parties, seek out managerial careers that allow them to exercise control over others, and sometimes display ostentatious personalities in order to put their dominance on display. Sociopaths are the extreme form of this, and desire only power and control. It is this prepotent drive that leads them to engage in so many anti-social activities.
