I just changed the resolution to two of the most common ones (searched). Above the fold, in one there is an 'organic' result, almost always a major brand that also has an ad. In the other, not even one because G products showed. Ads on top, ads on the side and ads on the bottom of the screen (G products). And that's without images, news, youtube, local etc being activated. In some you must have to scroll 2-3 screens. In my niche, a Google owned--but not labeled as such--site almost always has the #1 spot in 'organic.' Search for Google Ventures and see what else Google owns.
Isn't there a law that says ads should be *clearly* labeled? These aren't. Not that it matters since Google will find other way to make it up. It's almost futile, forget about capricious bans, traffic throttling, and penalties, even if you rank high little by little they will drive you out of business. Even if you bought ads, they'll play around with scores and other crap and have the nerve to even make us feel guilty. No matter how much more e-commerce is done online, Google will simply keep more clicks to their ads, especially those that matter (Remember, through tracking and personalization they can guess when you want to buy.)
At least we we can laugh when they tell us how much they care about the "user experience" and unbiased results. I feel sick to my stomach that once I believed them.