@itek
Google is a publicly traded company
What is the relevance of a company being publicly traded? Are you suggesting that private companies are less eager to earn profits than those that have their shares listed on exchanges? Wouldn't it be easier for a private company to cheat its customers and investors? Public companies have stringent regulations regarding financial reporting, private companies do not.
The more ads being displayed the more $$$ they are going to be making.
That is not necessarily true, Adsense/Adwords are brands. Advertisers want to get the highest ROI possible, having your ads shown on spammy websites is not good for advertisers. If Google, takes quantity of quality strategy, there is good chance that the biggest advertisers would seek alternative networks to display their ads. Displaying your ads on spammy website is not good for your brand. The proof is that last January Adsense rolled out the Ad-balance feature that allows you to limit the number of ads displayed on your site based on revenue potential revenue. You can essential block all ads that have a low likelihood generating revenue. This clearly shows that Adsense is not using, what you claim, the more ads more $$$ strategy.
I don't doubt that scapers have stolen content from you. Luckily for me it has been limited. I fully understand the frustration of not being able to fight this. But the fact that someone has stolen your content does not guarantee that they are able to monetize it in any substantial fashion. The chances are that the only real human that has ever seen your scraped content is you, since you went looking for it explicitly. My guess is that these scrapers must be doing this on such a large scale so that the fractions of pennies earned on any scraped pages can add up to few dollars. This can easily be tested. Copy your site, run some ads on the copied site and see what the impact is. Join the party! Then report back, My guess is that you will have wasted a lot of time, effort and cash for nothing.
Remember when you create content you want it to rank at the top, you want people to come engage and hopefully spend some money. The scrapers don't care about any of this, they simply scrape as much content as robotically possible and hope that humans accidentally land on it and click on an ad.