Depends on the type of person you are I guess? Personally I haven’t bought anything from something that was advertised in a banner. I buy through friend recommendation, research or need. I’ve never used an ad blocker because I understand the requirement for websites to generate income to provide me with their service (free content, automation of my tasks, or a place for social).
You could also ask yourself, an extension by a 3rd party that sits on your browser constantly running.. could also be tracking and monitoring your activity...
I’m aware of a developer I used to work with that also spent a lot of time trying to bug fix and ended up wasting his time due to the ad blocker he has on his browser. So you are not in the boat on your own.
As banners don’t bother me, waste my valuable time I won’t be running to an ad blocker anytime soon..
But turn marketing tracker off on Facebook, use a privacy search engine and go incognito, turn cookies and JavaScript off when using a browser.
But your online experience will be comprmised.. so I don’t see any foreseeable right answer to this other than ignoring banners and don’t give personal information to any websites.