"Economically the savings for the use of open source ad blockers are potentially easier to understand. For example, in the United States, if all Internet users enabled Privacy Badger on their computers, they would expect to save more than 91 million dollars annually. Globally, if all Internet users used uBlock Origin, they would collectively save more than 1.8 billion U.S. dollars a year."
https://www.mdpi.com/2227-7080/8/2/18#:~:text=Economically%2...