It's wasted money though. They're literally just losing more money on whatever money they think they lost due to piracy.
You can maintain or increase the value of your IP (and therefore tour company) by _showing_ you're investing in the protection of your IP.
After all, the value of IP in your books is subjective. That perceived value increases if you can report you've "removed thousands of links to pirate versions of our content". So in that regard, battling piracy is money well spent.
Got it removed from most Google page 1's? -> probably worth it
Trying to take down all torrents? -> probably not worth it
People share these links in Discord, Reddit, Telegram etc - companies are not taking them down anytime soon. It's literally an unbeatable hydra.