This might be true if the investment in society, infrastructure and lower classes always had been the same or same direction. After wwii it changed drastically and in favor of the working class and those in need, and society benefited greatly from it, there’s datapoints to show this to be true. Then there was a backlash from the wealthy to all the civil rights movements, labor movements and those investments were pulled back strategically. This is new, because it isn’t a continual trend over time, but that pull back has continued from the 1970s to today’s date.