Why are you use a right wing site for reference? It is not a real university and nobody but right-wingers believe anything it says. 
Oh, yes, there is such a thing as social democracy as practiced in the Scandivania. When the government gets involved in providing for its citizens regardless of their income, it is promoting general welfare and peace by reducing or eliminating poverty. By reducing poverty, the need to rob people to survive goes down. I know that conservatives hate that as they believe in inequality, as in cheap labor with low pay or lack of affordable medical care and post-secondary education. I also know that conservatives don't like to pay taxes that are used for helping poor people.