I never said they were the be-all-end-all of distribution. This comic implies that banks somehow are responsible for providing money to people to buy housing. This is a way larger systemic issue. People should be paid enough to be able to purchase property.
The problem is not necessarily that the ads are personalized. The problem is, to make them personalized, companies have to collect personal data. This turns you into a product, because they can/will sell your info to other corporations.