Why Do People Receive Recognition?

There are few people who don't like the spotlight, or being the center of attention, and would much rather put others before themselves, and those people, although few, should be greatly admired by others. Its something like the difference between vendors and volunteers; a vendor will gain money off of what they sell, or the way they work, but a volunteer only gets the satisfaction of knowing that they did something, without anything to prove what they did. There's nothing wrong with personal gain, some recognition every now and then is anything but bad, but it doesn't hurt to do things without receiving anything in return. Go pick up the trash around your neighborhood, the only personal gain in that situation would be that