Supposing that the "remarkable" part of a person is like the Umeboshi plum(ingredient) on an Onigiri(the triangle rice ball with ingredient at the back), the Umeboshi could be stuck to a person's back. Throughout the world, there would be various shapes, various colours, and flavors of Umeboshi stuck to everyone's back. However, since they are stuck on their backs, maybe they might not be able to see their precious Umeboshi. They'd think "I'm nothing at all, just white rice." Even though it isn't true, even though surely enough, they'd have an Umeboshi stuck to their back. If someone is jealous of somebody else, that's probably just because they can't see the Umeboshi in the middle of their back.