Like I said in another thread, education is only one factor in how sucessful you are. Your desire to suceed, hard work, people skills, ability to form working relationships, and financial discipline have a lot more to do with it. Sounds like the manager in this article had some of that. But did he have financial discipline? Did he save up a month, three month's, or six month's worth of available money for emergencies/hard times? (Yes, I know, easier said than done. I'm working on getting my cushion back to that level, but I've also had the extra cash to save my ass in the past.)
How many highly sucessful salespeople have advanced degrees? Not many, but they have the right combo of skills and social ability to thrive in their workplace.