The billionaire kids won't have been saddled with the cost of supporting their ailing parents. The two situations are not just like each other. Also, there's

The billionaire kids won't have been saddled with the cost of supporting their ailing parents. The two situations are not just like each other. Also, there's a benefit to society in avoiding a hereditary concentration of wealth in a quasi-aristocracy of Paris Hilton-class morons.