Also, ads are currently indispensible for privacy as weird as that may sound. There is currently no widespread, privacy preserving form of electronic payment, and I very much doubt that there will ever be one.
What we should do is regulate/restrict ad targeting and make sure that advertising is as transparent as possible.
But none of that has anything to do with Google's reputation issues and conflict of interest. Google should split off its ad business from all other activities. Otherwise they will always remain an advertising company and distrust in everything else they do will only grow.
You have to ask yourself what advertisers would do if you ban those in-your-face super annoying ads. Stop spending money on trying to influence our decisions? I don't think so.
https://www.bloomberg.com/news/articles/2014-03-03/advertisi...
I think transparency is more important than fighting annoyances.
What if something questionable happens, even if it's legal, and you're found to have handed over patient data to Google, the largest ad targeting firm on the planet?
Pointing at legalities will not save your reputation or your job in the face of glaring misalignment of interests.
It's like letting your dog guard your employer's sausages after giving it state of the art training in self control.