I feel your pain as I had numerous mini heart attacks because of such and similar cases.
I believe it was about 2 years ago or so that I asked Google AdWords to issue credits for the cost that has been generated based on the appearance of ads that were against the TOS, and yet stayed there due to Google's incapability of stopping and removing them in timely manner, even after I would report them with the most possible data I could gather, for sure more than enough to take action after policy team would confirm it.
IMO, it is just that they can get away with it. I don't even recall when I mentioned lawyers and Google AdWords last time, but I wouldn't be surprised if 7 or more figures would be on the table considering the amount of time since one display URL per result policy has been introduced, while for the whole time we've been seeing bunch of those that have been going through with invalid display URLs. If we take that the turn over for invalid display URL should be 2 business days, all of those that hanged for more (and hang on right now), would be the cause of "extra cost" that should not be there.
Now, back to reality, you should be sitting on their back and point to ads in question as soon as you see them. Plus, in many cases, be ready to bring your brain down to a level of grade 2, as many of front people are just like that.
Last week I finally called about ads that were advertising pirated software (obvious case, or at least enough evidence to start investigating), and the young lady on the other side asked me to point her to the part of AdWords' TOS that says pirated software was not allowed.
The ads were not there as of this morning, but I see them now (again).
Go figure - 1-866-246-6453
The bottom line of this "blah, blah" is:
If you are incapable to support your own TOS, you pay for it.