Self education
Formal education can make you a living, while self education can make you a fortune!
I know people that have been formally educated that have also obtained nice, comfortable lifestyles. Most of the time it is due to the circle of contacts they were exposed to, not necessarily the quality of education they received from a "tried and true" university. The key word being "comfortable". If you're seeking a top 5% lifestyle, your thinking and activities will not be satisfied with "comfortable".
Most highly successful entrepreneurs went through their lives educating themselves. Entrepreneurs are willing to take risk and literally bank on their tenacity to make sure their objective comes to fruition.
This is an area that derives much discussion, in itself presenting much educational opportunities.
I have had brief stints within the confines of formal education, but for me, I ventured away from that arena and set forth on my own journey of business ownership, prior to having a clue how to actually run a business!