Whether you like it or not a lot of the internet relies on advertisement to work.
Some sites can introduce subscription fees and they can get out of it (I’d personally like that), some sites aren’t really sites but just optimising towards ad revenue (with all the shady practices that follow), but most produce valuable content for their users and rely on advertisement to sustain themselves.
So if we want to find a way to support that large center group, without enabling the crappy bottom tier, we have to make profiling safer. Well we don’t have to, we can dream of a safer, better world and try to bring it about by creating revolutions, but if we are practical, creating something that enables what the advertisement industry would like, without destroying what the users would like, is a far more realistic approach to making the world better.