BERLIN — Lazy and incompetent, showing little interest in most of the issues that fell within role he had sought so hard to attain: Adolf Hitler was in many ways poorly qualified to be a politician. Nevertheless, no other figure in German history changed so much in such a short period of time — albeit almost exclusively for the worse. His influence was due to two qualities: his charisma (a term that has no moral value and should certainly not be viewed as positive) and his rhetorical skill. For the latest news & views from every corner of the world, Worldcrunch Today is the only truly internat…