My view is that changes in countries not occur overnight, but they need a long, long time. Hitler was not a paratrooper fell on a village of people angelic but was the result of a long historical period and did what many Germans wanted.
Just as the defeat of Germany did not change his mind, this is changing very slowly over the generations, but only if these new generations are educated properly. If they hide the past, which is what happened for several decades after 1945, and if you allow Nazi organizations and the German grandparents, for the most guilty of crimes against humanity by act or complicity, are raising their grandchildren, the change will be very slow.
Germany has changed from what it was before 1945, but not as much as the people think and if her financial situation worse, would return to their ancient historical behavior.
There is a person, Gunther Demnig, that is dedicated to placing plates on the floor dedicated to the people who lived there and were killed by the Germans.
One paragraph of the article in "The Guardian" dedicated to him on 05.13.2013 is interesting to perceive some aspects of the current German reality.