It's how they should work.
When I get an ad in the mail, the advertiser doesn't know that I actually looked at it. When I grab a newspaper ad at the store, the advertiser doesn't know that I did that unless I use a coupon or something.
That's how I'd like online ads to work, but with a bit of targeting based on local-only data.
If they want me to look at ads, they're going to need to respect my privacy. If not, I'm content leaving my ad-blocker enabled.