As someone who came from a family who lived paycheck to paycheck and now lives in abundance I have a different viewpoint. In fact, I would say this ties right in to the negative view that the book would suggest holds someone back from wealth.
Does going to college make you rich? No. But does that mean going to college doesn't increase your odds of making a good salary? Statistically, it does, obviously. It's all a numbers game, but the choices a person makes directly impacts whether the odds are in their favor or not. Most people that succeed have plenty of struggles along the way. It's never point A to point B or everyone would do it.
“The brick walls are there for a reason. The brick walls are not there to keep us out. The brick walls are there to give us a chance to show how badly we want something. Because the brick walls are there to stop the people who don’t want it badly enough. They’re there to stop the other people.” -- Randy Pausche
If I had to summarize my financial lifestyle my entire life, from my first pay check, until now, it has been to spend less than I make. Simple concept; few do it. I split rent with others, went to a college that was basically free (federal tax credit), pursued a hobby I knew was in high demand and profitable, never bought a new or luxury car, etc.
I have had as many failures as I have had successes.... but I've also tried more than others, and worked with substantially more passion than others. I invested a lot of my free time for productive purposes rather than hollow entertainment. I remember years ago, I tried to motivate some of my co-workers to consider starting a project with me on the side that may be lucrative, and it was nearly impossible to motivate them to do so. They just didn't have motivated personalities and my best skills were not in persuasive communication. They were content sitting at home and binge watching every Netflix show. There's nothing wrong with that, if that's the life style someone chooses to live, but that's not a lifestyle that contributes to financial abundance.