I'm not sure I believe that, but I do believe a lot more pointless/useless/malicious garbage has been produced by people trying to make a quick easy buck than people motivated by their passion or hobby.
> Everything from your favorite news website to your favorite android app wouldn't exist (or likely wouldn't exist) if not for ads.
If making money from ads is the primary motivation for a site or app, then it shouldn't exist.
If they need to make money to survive they should charge people directly and honestly, rather than cynically whoring eyeballs to the highest bidder; if it's something genuinely worth paying for, people will pay.