I think the guy is one of the biggest intellectual scammers out there. He wrote his famous book when working a normal 8 hour job and was nowhere near being wealthy. He wasn't a rich dad. Just a normal guy.
That famous book doesn't claim anything about his wealth, though. It's about his somewhat editorialized childhood/adolescence experience with two adults - his own father and a mentor - and the difference in their behavior and outcomes.
The book content was okay albeit much longer than needed.