For the thousandth time...
The reason Greece fell as it did was not because of government spending, but because of the global financial collapse that was triggered by US subprime mortgage defaults. Greece also does not have its own fiat currency, it uses the Euro. So it can't print money to get itself out of the mess it got in because it relies primarily on tourism for revenue and if there's a global economic collapse, tourism is going to take a hit.
So Greece went to the ECB for a loan and the condition of the loan was that Greece had to "cut spending"...it was THOSE SPENDING CUTS that plunged Greece into a deeper hole because when you pull money out of the economy and don't make up for it elsewhere, that contracts your economy.
It wasn't socialism that caused Greece's debt it was capitalism.