I wouldn't really want my beer money disappearing down the toilet of international finance but it's a fun idea to focus minds. Maybe it has national applications in the future.
All these incompetently run hell holes should just bypass governments and aid budgets and fund the building of their infrastructure that way. Far more efficient. I'm not sure it would go down too well with the local dictator but I guess they'd be allowed to cut the ribbon with some giant scissors.
If you want to help the greeks, use the blue market. Go there, pay with cash, don't ask for a receipt. Take a bunch of olives back home.