What I'm saying is inheriting a business isn't the only time connections are important. As I mentioned having proper funding. So even if you didn't inherent the business either you're stuck hoping to be approved for a big loan to fund your business (which studies have shown is harder being black) or hoping you know people with money to invest in you. So right there is a major roadblock for a lot of people hoping to be an entrepreneur. Also no matter how much you know about a business you have to have knowledge about selling, finances, management and other areas that aren't just about industry knowledge. If you have the right connections you have people that can provide insight and knowledge about running a business.
Basically starting and running a business isn't just a matter of having the right mentality or taking the right steps. A LOT of it goes down to having proper connections, proper financing, and the ability to live without a check for a long time. Most of us don't have that last luxury or have anybody to live off of while we build the business up. It's just shortsighted to say the 1% is 1% because they took the proper steps when there are plenty of failure stories of people who took the proper steps and yet still failed. Hell even a lot of those that built successful businesses had plenty of businesses fail before striking gold largely because so many factors have to fall into place for that success to happen.
There's a reason that the best predictor of future wealth is a family's previous wealth.