Some people confuse asking for a sale with asking for a favor. And because they think they don’t deserve the favor, or don’t want to feel in someone else’s debt, they don’t ask.
That’s just stupid. If you sell something valuable at a fair price to someone who can use it, you’re doing a good deed. And if they’re paying you fairly, everybody wins. If you’ve got something good to sell and you’re not selling it, you’re doing the world a disservice.