Lots of people starting building a business above this premise, and never take care in improving their page rank, inbound links or to create content pages. That was the field of SEO, for the people that wanted "free" ranking.
Now it seems that we should do the same for AdWords, improving pages with quality content, getting inbound links to raise our page rank, and so... This is becoming the same as organic SEO... but with one main diference. We have to optimize the pages and also we have to pay to get listed! It does not make any sense anymore.
The split made sense to me. Now, it doesn't....