Hungary has done well too and I believe that Sweden will be doing so.Depends on the issue. El Salvador has done well with crime. Poland has done well with illegal immigration. Argentina is too soon to tell, but lets see what happens.
Edited because my first response excluded the "why". It's simple.
El Salvador clamped down on crime. Poland clamped down on immigration. Argentina is clamping down on socialism.
Sometimes, the people just have to say, "that's fucking enough".
If only the American people would say that to Israel. I'm sure you can appreciate that.