It's a real problem. Anecdotally, I've talked to several people struggling to stop clicking on ads so they can keep getting things done. I struggle with it sometimes as well.
Ironically, the solution is to usually just google the topic, satiate your curiosity and move on. But I can get stuck in a looking at ads for an hour before I realize what is happening. It's such a waste.
Person clicks ad
Person potentially buys something
Repeat