Jim, Rob and Alice where skilled in their choice of parent

The Walton family is the richest family in the world, their wealth inherited from Bud and Sam Walton, founders of the world's largest retailer, Walmart.[1] The three most prominent living members (Jim, Rob and Alice) have consistently been in the top ten of the Forbes 400 since 2001, as were John (d. 2005) and Helen (d. 2007) prior to their deaths. Christy Walton took her husband John's place after his death.

So what? They inherited money. Wealth belonged to parents, who OWNED it, and elected to give it to their children. It's THEIRS to use as they wish.