Most contractors have already paid for one piece of this. A site somebody built, a batch of blog posts, a directory listing, a month of ads. It didn't compound, because the pieces went in the wrong order and nothing connected to anything else.
The Momentum System is the order. Foundation first, because content on a broken site is just more pages that don't rank. Then the content engine, running weekly rather than in bursts. Then authority, once there's something worth pointing links at. Each phase depends on the one before it, which is why we don't let clients skip to the fun part.