>Organizing your country with more sustainable growth where income disparities aren't so high means you don't have this problem to this extent.
Sounds like US vs Europe. Having redistributive policies funded by taxes works well until your most productive people flee for a country that doesn't, and you steadily lose ground to competitors economically.
The thing is that Europe doesn't have much redistribute policies. Everyone at around lower rank manager or middle developer are landing in the highest tax bracket in most of the countries, and pay as much tax as rich people. And almost every tax raise is usually targeted at these barely middle-class people.
Americans like to act like they've beaten European nations in some kind of battle, but is the purpose of a state not to provide the highest quality of life, safety and health to its citizens? Not try to make the biggest corporations? In which case, even taking the whole of Europe as an average (which you shouldn't), by every metric beyond GDP its ahead.