Dr John Mendoza, the former Chief Executive of the Mental Health Council and of the Australian Sports Drug Agency, told Adelaide radio than in his opinion Kevin Rudd was a sociopath. In support of the good doctor I had a look at the definition of sociopath, very interesting and in my non medical opinion he does fit the description.
From the site First, to recognize them, keep the following guidelines in mind.
(1) They are habitual liars. They seem incapable of either knowing or telling the truth about anything.
(2) They are egotistical to the point of narcissism. They really believe they are set apart from the rest of humanity by some special grace.
(3) They scapegoat; they are incapable of either having the insight or willingness to accept responsibility for anything they do. Whatever the problem, it is always someone else's fault.
(4) They are remorselessly vindictive when thwarted or exposed. Link below http://www.mcafee.cc/Bin/sb.html