No enthusiasm. Just demonstrating that that person was obviously wrong. It was the quickest thing I could come up with in 15 seconds. I was just giving a proof by contradiction. All I need is one, right? I can give you other reasons people give to charities. They might want to see a cure for a disease they might get, for example.
Like ordering protesting student-teachers to be ridden of by gang members... Making other companies bankrupt through leveraging your OS near-monopoly... Colluding with the SEC to not get criminally charged for your financial fraud... Investing your future memristors... Eradicating Malaria...