That is the theme of my latest Bloomberg column, here is a snippet of the argument:
After the war, Germany undertook an extensive and largely successful campaign of denazification. Other defeated nations, such as Austria or Japan, didn’t attempt anything comparable, much less succeed. In a relatively short period of time, Germany really did turn into a largely tolerant, peace-loving nation, acutely aware of the extreme nature of its previous wrongdoing. For all the imperfections in this process along the way, it is difficult in world history to find a comparable switch in attitudes.
Or take German unification. It was hardly obvious this project to bring together East Germany and West after the fall of communism would succeed or even come to fruition, as there was plenty of talk at the time of a binational federation or perhaps a slowly phased evolution toward unity. Yet Chancellor Helmut Kohl and other German leaders, supposedly staid figures, had the vision to see unification could be achieved rapidly and relatively smoothly. They just went ahead and did it, even though many of the world’s leaders, such as U.K. Prime Minister Margaret Thatcher, were squeamish about the idea.
There are more arguments at the link, running up through the present day. You also can count Germany’s role in the EU and also the construction of social welfare states. Germany is in fact remarkably underappreciated as a political and also social innovator.