Despite the hubris of Greek leaders, it is appalling to see a proud nation on its knees
In Greek tragedy, hubris is a character's excessive pride or self-confidence resulting in loss of contact with reality. It offends the gods, who punish the individual because neither fate nor the gods can be thwarted.
Aristotle refers to it in his work 'Rhetoric', saying young men and the rich are hubristic. He does not include politically naive governments overplaying their hand, but that springs to mind watching the Syriza coalition engage in brinkmanship.
There are false gods, of course. The troika is one. Unchecked capitalism is another. Communism is yet another. The Greek government is not emerging well from the current crisis, but neither are the institutions with which it has been negotiating.