I started out by seeing this as the Greek Government being cynical, corrupt or incompetent and running public finances into a wall. I still think that's true. That happened and the greek government including the electorate are to blame.
But that is not the main story here. The main story here is what happens when a government does go bust. Sovereign debt doesn't come with these kinds of strings attached. If your debtor can't repay, you don't get to run the country. I think there are two bigs aspects to this whole greek story.
First, is that taking away national currency is taking away the ability to print and devalue your way out of trouble, which really increases the risk of government insolvency.
Second (this is where I've kind of turned around), I do think Germany and the EU are in the wrong. First, is the very german/west european idea that instead of a contingency plan, you need to make sure nothing goes wrong. Regulations and controls. This may work for germany, but it will not work everywhere. Other EU governments will go bust in the future. It's inevitable.
Third, banks run the world. Governments were already very cosy with banks. All the big markets and big fortunes go up and down with the slightest hint of bank health. Everyone is paranoid of banking issues causing wider collapse. Since the banking collapse, bank health has become completely equivalent to economic health. The economies are being nudged and designed to suit them. Central banks and finance ministries top priority is bank health. They are the favoured child.
Backing up a little, Greece's no strings soveriegn debt was converted into EU, Germany & IMF debt with strings in the panic phase of the crisis. Private banks were granted immunity from their bad debts to Greece and the IMF/EU is now acting like a leg-breaker loan shark demanding impossible payments or else. They are tying EU membership to repayment. That is not fair.
The EU needs a bankruptcy procedure. A way for insolvency to be resolved and a way for bad loans to absorb their due share. Greece's government did run the country into insolvency. But equally, these banks did a bad job valuing risk and making loans. Who says sovereign bonds need to be risk free anyway?