Should that wealth not be what God wants for mankind? What was that about poverty being a violation of human rights? If capitalist splendor is what God wants for mankind then the Pope has his work cut out for him. He should not be taking the wealth away from those who are blessed, but teaching the poor and oppressed how to earn a better living.
The "wealth" of the Vatican has been accumulated over centuries, and much of it is illiquid. There is priceless art, such as Michelangelo's frescoes, the Pieta, and the Bernini sculptures, but all would be difficult to value and sell.
I do think that God wants us to live to our full potential, and care for those who are not fully there yet. I think he also wants us to help those who could not help themselves, but the challenge I have is separating those who cannot, from those who WILL NOT help themselves.