I think it's an indication that being in the* business indicates primarily that you have business skills. 90% of everything is crap, most people are hacks even if they're profitable hacks.

If you want to see terrifying examples of mediocrity passed off as "professional" work, get into software. See also: Dunning-Kruger Effect.

* "the business" here really applies to nearly any field of commercial endeavour that one could choose.