hmm thought this was about adwords JS 'intelligently' reading page contents, and when it finds such attribution with some special tags, filters out certain ads...
The second you load JS onto your page, you lose that ability, you know that, right? the scammy ads aren't limited to that tiny little box you designate for ads. Advertisers work around that limitation pretty easily, and you should also probably read AdSense terms of service before doing too much to blame google. Some of the language will surprise you.