For me, the issue is not so much wealth, but what to do with it.

Money is a barter based abstraction, nothing more, nothing less. So in order for money to actually be money, it needs to be bartering. Simple.

Hence mega rich people sitting on, we are told, trillions is a bit obscene if governments are having to print money to kickstart economies. The only reason quantative easing isn't causing hyper inflation is that it is replacing money that is being taken out of the system when the mega rich squirrel it away.

Deserving etc is one argument. The effect is another.