There are several types of inequality. Last week I had the chance to eat lunch with a visiting Asian friend and coworker several times. We were talking about inequality and the 99% versus the 1% and he said that in his country the 1% was subject to different laws. In the US everyone is subject to the same laws regardless of status but in his country there is inequality in terms of laws not just wealth or political power.
There are many types of inequality, legal, athletic, attention, wealth, income, ACT and SAT scores, and many more. Some may serve as motivation, while others are harmful to many people. How do we wrestle with acceptable inequality and unacceptable inequality? I don't know. I suppose solve one problem at a time.