To be successful in business you definitely need some level of education. Does it mean you need to go get a degree? Maybe not, but if you do not have knowledge and skills to develop and run your business you are very unlikely to succeed.
Ultimately the guy from the show learned how to be a jeweler, so he definitely had an education, at work or otherwise, but he definitely had to invest a good amount of time getting his skills up to a level that would enable him to start and run a successful business.
So whether you go to college or go about it on your own, you need to educate yourself. The reason that so often college degrees end up being virtually useless for some is because they choose the wrong programs, and this is precisely due to a lack of business expertise and vision (at that point very few people have a clear idea of what they will do with their lives).
Bottom-line, no matter how you look at or call it, education or knowledge, learning and acquiring skills is the key to being successful in any business.