Actually, I'd have different concerns about ads that I didn't consciously notice.
One of the things that I think got completely overlooked in the recent Cambridge Analytica (and related) scandal was the idea that microtargeting actually WORKED to some degree. (Granted, it's easy to be manipulative when you aren't accountable for anything, but still - the idea went from vague promise to actual implementation). We've paid attention to the CONSCIOUS effects of those ads, but not so much to the subconscious ones. Even the ads that I dismiss as ridiculous are affecting my impressions of certain groups, and when the ads are primarily there to increase division, dismissing them still has the same result.
Every-time I go for groceries in one of the Costco equivalent here, they have an alley to funnel you into the self-service machines area. This path has on both sides sweets and at the very end the bakery stuff before you are free to do your checkout.
Every single time, despite being well aware of the trap, I can't help but grab either some muffins or cookies.