One of the biggest insult for any modern politician is to called Nazi or a Goebbels like figure. In the later case it’s not only an insult, but also a compliment. Joseph Goebbels obviously stands for extreme and dedicated propaganda to serve and create an evil Reich - but he was smart, witty and extremly skillful.
He not only pioneered several new propaganda techniques like the Volksempfänger, he masterminded the mental seducation the german people. He and Hitler were masters of mass psychology. Goebbels ministry was everywhere - Propaganda was not simply creating advertisement for the government - they formed, educated and developed german society - every detail of it.
It is hard to understand his skills until you heared and analysed some of his speeches. They are really impressive, moving and captivating. The collage ‘Totaler Krieg‘ is a bit more authentic.
Watch this short documentary about Goebbels: Part 1 and Part 2 (although the pathetic music in the background is almost unbearable.
More? Joseph Goebbels @ Wikipedia and a Collection of his Speeches