You are owed $100. #1 you didn't know you were owed $100, #2 you were never going to be told you were owed $100, and #3 someone, through trying to get that $100 themselves, got you paid the $100. You woudn't be happy if instead of getting the full $100, you were only paid $90? The same money that, once again, you didn't know and weren't going to know you were owed?

What if, by giving that $10 to someone, more people started looking for $100 bills that people were owed? All the sudden there are now $300, $400, or $20,000 found that you were owed, but sadly you only got $270, $360, or $18,000. Man, I guess you are right. You really would have been better with 100% of nothing, than 90% of something.

If you didn't know you dropped a wallet, and someone comes up to you and gives it back before you even realize it, you don't try and give that person a few dollars cash out of that wallet?