You seem to be misunderstanding the entire premise, I just can't tell if you're doing it on purpose or not. They don't make money from your purchases. To oversimplify everything, they make money when a company pays them to show you an ad. They also make money by watching everything you do and building a profile about you that they then sell to the companies so they can pay Google to show you ads that they think might tempt you the most. There are very complicated metrics running behind the screen that determines how likely the purchases you have made were affected by ads shown to you, whether you clicked on the ads or not. You might think you haven't been affected by ads or made Google $16,000 because you didn't spend $16,000, but that's not how they make money from you.