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.
A lot of social sciences is about generating and constructing data to prove something that seems obvious to most casual observers.
Part of why is cases like this - that despite it seeming evident to many folks, there are many others who insist that poor people are to blame for being poor, and bad individual decision-making is the only reason that poverty exists.