You know, this whole thing started because a batch of people who shouldn't have had loans asked for them and the banks decided to lend them money anyway.
And if they denied loans to Greece?
If they'd denied them back in the 1980s, we wouldn't be in this mess. In fact, a lot of the mess in the developing world is due to loans being given during the Cold War to military juntas so they could buy weapons... and it became so impossible for them to pay back as well as preventing governments from looking after their people properly, a lot of it (after pressure for campaign groups) was forgiven. Look up the Jubilee 2000 campaign to see what I mean.