That article doesn't give any credible sources, so it's just guessing, as is every other Internet article concerning his net worth. It's literally just referencing a New York Magazine article which says "Wales’s total net worth, by most estimates, is just above $1 million" with the only offered being a literal Google search (!).
The only public information we have, I believe, is his divorce proceedings in 2011, which put his net worth at around $1m. There's no reason to think his net worth hasn't grown considerably since then, given his position, paid speaking engagements, etc.
The only public information we have, I believe, is his divorce proceedings in 2011, which put his net worth at around $1m. There's no reason to think his net worth hasn't grown considerably since then, given his position, paid speaking engagements, etc.