A global study led by a researcher at Columbia University Mailman School of Public Health and published in the journal Scientific Reports finds that economic inequality on a social level cannot be explained by bad choices among the poor nor by good decisions among the rich. Poor decisions were the same across all income groups, including for people who have overcome poverty.
Yes, but people get paid income in wages, so it is still relevant. That some of them turn income into appreciating assets, or wealth, is a separate issue.