I've always like the Liechtenstein family, even though they're rich, all of Hans Adam's children all work for a living. The Liechtensteins also don't ask the Liechtenstein people to pay for their living expenses.
I don't know that much about them, but I also think it's pretty admirable that all the children work, considering they are, by far, the richest royal family in the world. It would be really easy to sit back with their feet up and coast on the family fortune. I wonder what kind of pre-nups their spouses have.