The dock manager (Google) opens a gate to the strong looking fellows allowing them into the dock company's holding area. If they are not in this area (front page of appropriate SERPs) then they aren't considered by the task master who later comes to the holding area, scans the candidates that the dock manager has selected, and takes his pick to get the days work done - from which point it is finally up to the individual and their abilities to prove their ongoing worth.
Imagine if you needed to be an SEO, adwords and general internet marketing guru just to get the dock manager to look at you so you could get paid....
EDIT: Clarity