Did what exist? Wealth? Food? Wealth is something that is useful, and most of it needs work (food grows on it own) but needs work to plant, water, harvest, distribute etc.
The value. The asset that can be sold. That which you say the rich steal from workers. Did that exist before it is grown?
All value comes from natural resources and WORK put into it to shape the natural resource into something useful.
Not answering the question.
