Agreed - there was undoubtedly some benefit for some of the middle European nations by having big spenders without fiscal discipline in their midst. I am sure, that some of the Greek debt paid for some German luxury cars as well as e.g. German (and potentially French) weapons.
It was as well a benefit for some of the mid european export nations (not just Germany) that thanks to the Greek (and some other financially ill-disciplined South (and West-) European nations they could export using a weaker currency than they otherwise would have (e.g. in the past the strong Deutsch Mark made it always difficult for the German export industry).
However - it is not good business to give loans to people who don't intend to pay back, even if they choose to use some of the credit to buy goods from you. The new Greek government is now for some time toying with the concept that any debt repayments by them are voluntary, and only if they really like the new terms they are trying to force onto the creditors ...
I find it difficult to find a more positive description for a people who used to "massage" their books in order to get entry into the Eurozone and be eligible for credit, for a people who don't refrain from blackmail to get more of the "free" money they are used to. Why do you think Greece is currently warming up the idea of a third gigantic war reparation settlement from Germany (equivalent to 1/10th of the German annual GDP) after having already received several full and final settlements? Sorry - as indicated earlier - I am sure there are as many honest and hard working Greek people as in any other nation, but the Greek nation itself deserves in my view no respect for their current behaviour at all. They are bludgers living of other nations hard work.
In my view - there is no honour left in a system and government like that - they just try to live as long as they can from other peoples money (well, until this money runs out). Actually - just re-reading the latest sentence it dawns to me ... this must be a socialist government they have in Greece these days - isn't it?
But if you don't like my "sucking other people's lifeblood" - just give me a better word describing their behaviour ...