[quote=@The Patriarch]
we have to remember that this isn't modern day economics, if he has an infinate amount of money and he and his family are the only ones who own it then there would be no economic problems, it would just be that he and his family are infinitely rich.
[/quote]

Although, the more gold he spent the less valuable it would become as more gold got onto the market. 

Either way, this is a fruitless discussion since nobody is about to uncover the secret of infinite gold.