[pas]

Rich kids have to constantly compete with each other for status, this is very much like water polo. It's pretty nice and eye pleasing above the surface, but the stuff underwater, that's not so nice. Yet that's something you have to be adept at too to win.

So, in less metaphorical terms, rich kids learn soft power (social) skills. They are little politicians, backstabbing scummy princesses. This comes very hand for them later in life.