Comment by hobofan

Yes of course Google nurtures the SEO industry. The first hit I get when I google SEO is a best practice site from Google themselves.

The person/department/agency that is responsible for doing SEO is the same one that is responsible for spending ad money on Google. It's in their best interest to internally sell "search" (no matter if organic/inorganic) as a good advertising channel and that creates great stickiness for Google's ad business.