Idk the answer, but ads did give us more less biased news in broadcast news for a few decades.
Ad companies have lists of banned topics, effectively leading to news organizations being unable to talk about those topics without losing ad revenue. It’s called keyword blocking, so you’re actually getting biased news because of ads. It’s a well-known advertising strategy to just avoid controversial topics entirely.
Browsers of the world unite, we have nothing to lose but our ads!