
It is common knowledge that, in rich societies, the poor have worse health and suffer more from almost every social problem. This book explains why inequality is the most serious problem societies face today.
San Francisco used to be my favorite big city in America; now it's a hellscape. The experiment, whatever experiment we're running, failed.
The problems of inequality go well beyond living standards. E.g. political control in a very unequal society gets concentrated in a few people.
* "Capital in the Twenty-First Century" - Thomas Piketty
* "The Spirit Level" - Wilkinson & Pickett
* "The Price of Inequality" - Joseph Stiglitz
However, at this point I wouldn't be surprised if none of these authors ring a bell.
But is seems like you are perfectly able to articulate the ideas - just not to internalize them. Yet.
This is why naive explanations of inequality that blame the poor or the envious are false.