Economic downturn in one nation, could drag the global economy down into recession. As occurred during the 2008 economic crisis. When economic slowdown associated with US banking issues toppled the world economy. Nations are networks of trading partners. When one goes down. It can have a chain reaction, where others are taken down with it. If sacrifice is the smart call to make. I think people might question why the EU hasn't already sacrificed greece. To encourage them to resolve their debt crisis.
Of course, the lower the deviation from inflation, the economic sector as well as the real sector suffer a fairly bad distortion. That's right, when in 2008 efforts to maintain macroeconomic stability for the US economic recovery experienced major challenges with the weakening Dollar.