I am observing what ENTJs do to people.
They tend to torture them to the point when they need treatment. ENTJs are usually very poor judge of character (especially in emotional matters). They always need to assume responsibility and the desire to lead and to know - causes them to break everybody around them.
It is like House MD. He may be successful on paper, but his methods are constantly breaking the mental state of everyone around him. On the long run his contribution is probably negative, because so many people are subtly influenced for the worse.
ENTJs are like a drug of guilt. Because they manage to know (or organize) a dirty story about anyone in their circle, they keep all the others dependant. And at the same time accuse them of being weak and stupid.
Of course, it's not all black and white. ENTJs are competent, bring the latest trends, and when they lead, they usually bring the crowd to final success. The question is how negatively is the crowd influenced during this process.
In their worst moments, INTPs are also capable of creating sociopaths out of ordinary people. Not that INTPs are ever the bad guys, but they think such unimaginably negative things about others, that their reactions are shocking and can cause healthy people to go mad. The thing is, most people have some sorts of idealized images that guide them. INTPs and ENTJs tend to break those ideals to pieces, and if they are too harsh, they can produce disorders where there weren't any.
Another sociopath-producer is the ESFJ. They are too sexual, and treat every person as meat of value or not. They are shallow, but still capable masters of subconscious accusations and personal attacks.
In summary, I think sociopaths are the victims of indirect aggressive communication - by analogy, by quotes, by misinterpretation, manipulation etc.