If I pulled out two identical $10 bills and you added two zeroes on the end of one of them, but the guy next to you still saw two $10 bills, I'd probably choose to pay you with the one that you saw the zeroes behind. Charities are fueled by people who love their work and have the talent and vision to add zeroes to the back of $10 bills. If those folks happen to find the next guy that will actually pay for those extra zeroes, and they have earned the consideration in the first place, that's upside (both ethically and monetarily).