I totally get where you are coming from. And I would much rather be given an opportunity to have my voice heard with regards to the barrage of ads delivered to my web front door.
If we are living a transparent, brutally honest web life - advertisers should have the courage to ask us if we like or dislike what they are ramming down my throat.
And I work in interactive advertising and marketing. The key is to get the actual client, "advertiser" to buy into this...they are the ones afraid of "change".