You sugarcoat it by calling it a tiniest mistake. Just call it fraud.
https://www.bleepingcomputer.com/news/security/hackers-abuse...
https://www.bleepingcomputer.com/news/security/google-ads-pu...
I think I'll sleep tight knowing I'm not the bad one here, buddy.
To phrase it in another way, if Google wasn't very good at detecting fraud, it would not have been making so much money or becoming such a big company. Billionaires are more likely than not to be absolute misers; the same applies to corporations.
Especially when your company basically controls the internet. I'll repeat what I said before, Google pick on someone your own size.