There are several ways to look at inequality. The most simplistic way to so do is looking at relative wealthy by decile and comparing the ratio between the top and bottom. In feudal society, everybody was relatively poor, and the wealth gap may be on the order of 10-100X. In modern times, that ratio may be far larger and under a certain definition that would be mean higher inequality. I'll concede that this approach fails to capture the practical experience of the haves and have-nots over time, and having our's hit all-time highs isn't immoral if there is some baseline of sufficiency at the bottom. It also doesn't account for social mobility, which we exceptional at.
Still, we live in a novel time where orders of magnitude of wealth that haven't existed before. It is hard to fathom, and calls into question what is and isn't a de-facto privilege of enjoying.
I found this article which offers some more nuanced approaches to measuring inequality in different societies than Gini. https://mpra.ub.uni-muenchen.de/5388/1/MPRA_paper_5388.pdf
However this is not based on reality, the US ranks behind most European countries and canada on social mobility: https://www.visualcapitalist.com/ranked-the-social-mobility-...
The visual capitalist provides a definition of social mobility - children having a better life than their parents or being unconstrained by their socio-economic status. But the index they reference doesn't measure that. It measures more general Quality of Life metrics like prevalence of malnourishment or quality of the social safety net.
So while a high score reflects an easier life for the low end of the social ladder it doesn't actually measure their ability to move up it. I could on paper come up with a country that scored quite well on most of the index measures and had a rigid caste system where children could never outperform their parents and cannot escape their birth status.
Our society should stop feeding children lies about systemic inclusivity.
Children are fed lies about their role in this society and spend a lifetime acting surprised that their ideas never happen. We could also just stop doing that. Its not corrupt that we don't have a direct democracy, we just dont have a direct democracy. And the system we do have has different rules, which simply don't include the capability of “the proletariat” to have the same effect as immortal organizations with enough resources to maintain focus.