I would caution against fueling cheap populism. First of all, every German who has spent a vacation in Greece knows that the standard of living there isn't higher than it is in Germany. Second, Greece is paying a high price for European assistance.
As for the role of France and Germany: French politics is often more self-confident then German politics due to the catastrophe in the first half of the last century. If Berlin and Paris don't agree, then it is difficult to make progress in Europe.
This much is true: When we created the euro, it wasn't possible to create a political union along with it. People weren't ready for that. But since then, they've grown more willing to go in that direction. It's a process, one that is sometimes laborious and sometimes slow. But it's important to keep the populations involved.
Greece's debts are all denominated in euros, but it isn't clear who holds how much of those debts. For that reason, the consequences of a national bankruptcy would be incalculable. Greece is just as systemically important as a major bank.
There are several silver linings on the horizon. The current account deficits in Spain and Portugal are declining because they have become more competitive and they're exporting more.
In the long term, Germany didn't need a finance minister who was absent during important negotiations in the European Council. But the chancellor strongly encouraged me to stay. And everything did work out for the best in the end.