The problem I have with a lot of the so called financial "advice" is that it's pretty simple rehashed and relabeled basic knowledge.
Find a new title, a new scheme and new labels for old ideas and people will lap it up. They want to get rich quick, but not actually save more than they spend or give up some of their unchecked consumer lifestyle.
Stuff like Trump and Rich Dad, Poor Dad are just the same crap over and over and again. Trump's books and seminars are just horrible drivel.
All that being said from the looks of it, Ramsey seems to be the real deal and not a "magic bean" approach.