To acquire the high salaries you're talking about, Sweden had to grow substantially at some point in the past.
The 1970s and 1980s were terrible times in Sweden economically. You had to grow out of that through economic reforms.
http://www.forbes.com/forbes/2009/0803/international-invest-...
From 2001 to 2014, Sweden's GDP per capita went from $26,000 to $60,000. Surely you didn't need any of that growth, right?
It's easy to soap-box about greed, when ~90% of the world is far worse off than you are.
Sweden also has a consumer debt vs disposable income ratio of 180%, one of the highest on earth, and it's brewing into a crisis. Without the high salaries, courtesy of past growth (since Sweden's economy hasn't expanded since 2008), Sweden would currently be in a crisis economically due to the very high individual debt levels. Most likely in the future to deal with those debts, Sweden will have to slash its standard of living, or boost its growth. Nobody likes to go backwards in comfort, and that's why the 'obsession' with growth - you can't stand still for very long, you either have to go forward or you will go backwards.
http://www.reuters.com/article/2014/11/09/sweden-economy-idU...
http://www.bloomberg.com/news/articles/2014-01-13/nordic-cri...