I'm really surprised when I do a blogsearch and find many people that are evidently trying to proclaim themselves Sociopaths, or at least use it as part of their titles. A true sociopath does not realize they are one. In their unique way of perceiving the world, they are the normal ones and would never even consider they have some sort of personality defect. The same way that someone we consider "crazy" does not think they are crazy. Their illness shapes and filters the way they perceive the world around them. Perhaps an appropriate analogy would be a colorblind individual that perceives only black and white. If they've never seen color before they would have absolutely no idea what it looks like. You could attempt to explain it for hours and never get the concept across. It's something that has to be experienced to be fully understood. To the Sociopath, you would be attempting to explain what mainstream society considers "normal." Something the Sociopath has never experienced and is incapable of experiencing.
In my own dealings with Sociopaths, they deny they have a problem. Not because they are lying about having a problem. simply because they are incapable of seeing how they are perceived by most others. What further compounds the issue is that most "normal" people are also incapable if imagining another having the traits of a Sociopath. Attempt to imagine someone with absolutely no empathy for others and it's impossible for most of us. Most people have lived with emotion as part of our psychological makeup all our lives and it's an integral part of the lens through which we view the world. What has really brought Sociopaths to the attention of mainstream humanity is the use of them in movies and the news we receive from around the world of people committing horrific crimes with apparently no remorse whatsoever.