The 'client' in this case is the individual web sites that use Google's ad solutions -- not Google itself. It's the same thing with businesses' Facebook pages -

The 'client' in this case is the individual web sites that use Google's ad solutions -- not Google itself. It's the same thing with businesses' Facebook pages -- Facebook simply acts as a data processor in that case. This is why nothing will be done about this. Sure, we might see a few smaller businesses fined, but the vast majority of sites using Google for ads will simply slip under the radar, while Google simply puts the blame on the site owners.