The problem with a lot of this money is that it's all on paper, it can't be liqudiated and if the people who owned shares of the companies tries to liquidate their shares in the portfolio of companies they own it would cause an insane amount of panic. Causing the share price to plummet and their wealth to decrease -- unless people were buying all these shares up at market price.
First of all, the statement by Oxfam is a blatant lie, and they are distorting the facts. But I am not surprised, as the liberal media outlets never tell the truth. They have made their statement, to sound like "8 men own half of all the wealth", which is false (they own around 0.1%).
This too, welcome to the MSM and what they try to do in order to paint a horrible picture to the rich and the elite in the countries in a way to get people to turn against them. Always bothers me that companies do this that are owned by the elite too-- like aren't you being counterproductive.
And anyway, so what?