For a failed society I would call a society who is built on violence and killings going to invade other countries,corruption and treating different class of people differently where the rich are treated differently compared to the poor and everywhere you see there is corruption from the lowest instance to the greatest one,I will not name that country here but I believe anyone has already understood who that is.
It's like those hoods that we'll see typically in those documentaries where even their government can't control the chaos on those areas. And that's all due to corruption and no political will of controlling such so, it has come worse and that's no longer containable. While those societies that you've mentioned, the Nordic ones. It's true that they've got the successful ones not mentioning the others from other continents but they do really click to be said as one of the good if not the best societies where people are enjoying all of those perks and peaceful living, thanks to its people's cooperation and their government.