It is worse than that, even where you are buying product (say on Amazon or eBay) your data is being mind for additional profit to advertisers and the like.I wish everybody realized that if there's no product being sold to you on a website, your information is being sold as the product to others.
As more and more of our critical social infrastructure move online and we are authenticating our connections to online services via email addresses people are at risk of becoming non persons is they ever get banned by their email provider and the like.