I think a big part of the problem is that the ads you see are the ones that win an auction and not necessarily the ones “most relevant” to your profile. There’s an element of relevancy, but I believe it’s frequently overwhelmed by the simple willingness of a given advertiser to pay, even if they know you may not be a precise match to a given profile. We still end up mostly with ads for products/services/industries where the return on ad spend is better, and it o my matters what your interests are at the margin.