Possible, but then you have to explain why countries who spend more per capita on social spending haven't done as poorly as Greece. Countries like Germany, Denmark, Sweden, and France (from OECD 2007 http://www.businessinsider.com/countries-most-entitlement-spending-2011-4#14-luxembourg-1).
As for the monetary union, the eurozone already is dominated by Germany. That's the problem really though. Individual country governments have the power to set government fiscal policy, but don't have the power to control monetary policy. If they did, Greece would long ago have devalued, to raise its exports and reduce its real borrowing costs.
And concerning government workers, I do believe their benefits are too generous. But that day of reckoning is already coming.