The fact that Dave Ramsey has such a massive following based on the most basic common sense, basic logic, is the signal. His whole platform is basically "Don't take on debt. Live within your means."
That there are hundreds of thousands of people who need someone to explain that to them in daily episodes is not indicative of Ramsey being a savant, regardless of how sound, objectively, a lot of his advice is.
It tells you that public education has failed that many people. It tells you that that many people are that reliant on someone else to think for them. It tells you that that many people refuse to do their own research or to trust their own knowledge or judgement.
Fortune favors the bold and the more i hear from this man, and see his following grow, the more I find it very clearly despises the vacuous.