It's definitely possible. There are no examples that I can think of as to countries that have achieved it, however microcosm's of society have achieved this state.
Here's the thing, given a large enough population it's inevitable that conflict arises. Even IF you managed to stop war, there would still be local violence, and a fringe element of society who would rebel against the norm.
But in the future, thats a different story.
Theoretically socialism would be the best form of government, and given infinite resources and luxuries it would be inevitable for society to move towards this direction. Say tomorrow I invented a machine that could take trash, boil it down to its atomic level, and re-assemble it as anything I wanted (with equal mass to the amount burned down). I could use trash to create new clothes, food, building materials, anything. Capatalism would fail in the face of such an invention. That being said, to maintain social order, society would need to pool it resources and work together to formulate a new goal / direction. The needs of society over the needs of the individual. Basic socialism.
Now it didn't work with communism in Russia, humans are inheritantly greedy and without infinite resources this simply wouldn't work. However I do wonder if making such a machine would result in mass land grabs, war and the inevitable conflict such a machine was trying to avoid.
Barring the magic machine, I'd say a shift in the social perspective would be necessary. The education of philosophy from an early age would be an interesting prospect.