There is an ad that I always see on my adsense - "how to earn 14,577 a week". Its really not relevant to my site at all. I am wondering if there is a way to see how much it is paying so I could filter it if its bad.
No, there's no way to know exactly how much the ad pays - specially because the value of the same ad varies according to the website where it's displayed. I would get rid of it. "Get rich quick" ads generally pay little (as low as 0.01), because this guys are full of BS.