How many people do you know who have gone to graduate school and received an advanced degree or two, worked 60-80 hours a week and are poor? They may not be "rich", depending on your defintion. But unless they choose a career and lifeswork that regardless of education and work will provide minimal income, they will not be poor.
How many people do you know who have gone to graduate school and received an advanced degree or two, worked 60-80 hours a week and are poor?
Personally? Dozens, unfortunately.