Seems like your paragraph is shying away from the spirit of the quote.

Its a fail to let the sucker keep his money because its passing up on an opportunity. Like walking by a hundred laying on the sidewalk.

Not because of the stuff you say. Selfishness isn't some kind of weird judo altruism, where you are doing the world a favor by maximizing the resources in the hands of non fools. Its not like you are gonna take the cash and bring it to someone smarter than you.