People are arithmetically challenged. People also like to boast about doing good etc. Typically they realize how stupidly naive they were just around the time t

People are arithmetically challenged. People also like to boast about doing good etc. Typically they realize how stupidly naive they were just around the time they no longer have ability to say "That's nice to know. So how much are you going to pay me?" The down votes on calling spade a spade demonstrate it quite well