pathocrat
A person(usually a politician)belonging to a small pathological minority that takes control over a society of normal people (from Political Ponerology: A Science on the Nature of Evil Adjusted for Political Purposes, by Andrew Lobaczewski)
‘The biological, psychological, moral and economic destruction of the majority of normal people becomes, for the pathocrat, a biological necessity.’ — Dr. Andrew Łobaczewski (1921 – 2008)