> A better approach would be to look at the quality of life of the poorest.

But "quality of life" is relative. What is it relative to? The "quality of life" of other humans. There may be other metrics, but certainly wealth inequality has to feature prominently in any discussion of "quality of life". No?

Also "quality of life" is subjective whereas wealthy inequality is objective. Hard to define and masure "quality of life". Easy to measure and compare wealth.

Edit: Instead of mindlessly downvoting, why not just offer up other metrics or define "quality of life" and how to measure "quality of life".