Logorrhoea

In the Logorrhoea article, I found it interesting that in one context, Logorrhoea is a way of speaking in which a person may use very complicated words that don't add any extra meaning to a sentance for the sake of sounding more intelligent. Then it goes to say that "Logorrhoea is a language disorder present in a variety of psychiatric and neurological disorders" (Wilkipedia article on Logorrhoea). It's just very strange how the same type of speach could be defined as a way of trying to sound more intelligent, but also as laguage disorder present in some types of mental patients who speak that way on an unconscious level.