Great Kens think alike.
I mean, let's think idealistically for a second. What sites would Google really want to appear at the top of search engine rankings? The sites people visit and use as well as the ones that provide the most relevant information about a keyword. A site that is created, even with the main goal being affiliate commissions, as long as it satisfies those ideals should continue to rank well.
I hope they don't use this as an excuse to become lazy with how they rank sites.