Around 60% of the worlds richest wasnt self made. The money they got now were the money made by their family.
If that's true, what's wrong with that? They'll have to make good investments (and therefore produce for the society) if they want to maintain their wealth.
Please see page 1. Asset holders do not have to work.
Looking for profit opportunities is also working. Or somebody else is being paid for doing those decisions, then that person is working.
You don't magically create wealth, you have to be able to use productions factors to create something that customers are willing to buy for more than it costs you to produce.