I don't know much about inequality specifically. But I know poverty is a bad thing for everyone. It creates violence and prevents people from having a chance to contribute to society. We're starting to see people who have health issues that have accumulated over multiple generations: lead poisoning, nutritional deficiencies, drug poisoning...
Is it ok to have inequality if everyone is at least middle class? It seems ok, but I think the problem with this is the artificial barriers to breaking into the wealthy class. Lots of more capable people tend to be held down in lower classes while less capable people are allowed handle the wealth because they were born into it, know the right people, and know the culture.
Of course there are plenty of exceptions to this trend.
Is it ok to have inequality if everyone is at least middle class? It seems ok, but I think the problem with this is the artificial barriers to breaking into the wealthy class. Lots of more capable people tend to be held down in lower classes while less capable people are allowed handle the wealth because they were born into it, know the right people, and know the culture.
Of course there are plenty of exceptions to this trend.