A lot of them do, yes. But there's chaos on a small scale (like in a family) and on a large scale (like being a serial killer). They range the entire spectrum.
The actual thing that causes sociopaths to be sociopaths, Psychopaths to be psychopaths and people with psychosis have psychosis is different in many human beings who are diagnosed or self-diagnosed...
All sociopaths share three common characteristics. They are all very egocentric individuals with no empathy for others, and they are incapable of feeling remorse or guilt. I've had much experience...
Lacking a conscience..
This is still under debate by professionals. Some say that it is developed in childhood, due to neglect and abuse leading to a power complex. Others say that this is the way...