technically, browsers can break the monetization incentives. For example, Google found it a wise investment to sponsor an entire browser just to keep referrer

technically, browsers can break the monetization incentives. For example, Google found it a wise investment to sponsor an entire browser just to keep referrer header and 3rd party cookie enabled. If all browsers disabled this (apple already got rid of 3rd party cookies) then the cost to monetize the web as it is being monetized today, would be too high to be effective.