[tikhonj]

Ah, but it is Google's job to make sure the pages are well designed. The top-level goal of a search engine is to deliver the best results possible. Once a result is sufficiently relevant, the quality of the site matters. Given two sites equally relevant to my query, I definitely want Google to prefer the well-designed one over an annoying, ad-ridden mess that's hard to read.

There is nothing wrong with restricting the design of a webpage aiming for a good Google ranking: as long as it results in better websites rising in the results, it's a good thing.