oil

Wealth exists along a spectrum between husbanded produce, at one extreme, and extracted loot, on the other.  There is a moral polarity to the spectrum, the one indicated by these labels for the poles, but as usual the morality of any particular wealthiness is only lightly implied by its individual place along the spectrum.

At the productive side of the spectrum, there is as much wealth as there is labor.  It is infinite in resource, bounded by time, but multipliable by methods and machines, or better materials, or more men.  Any of these enhancements press it down the scale towards extraction.

At the extractive side of the spectrum, there is (only) as much wealth as is found.  It is finite (though huge) in resource, but unbounded by time.  Thus, in the perception of time-bound creatures such as ourselves, it may be effectively concentrated: piled up for a few years, but this will be no matter to a person who is concerned only with his own few years.

The habits of husbandry and the habits of extraction are largely, not entirely, contrary.  But they are not contradictory, and the complete person has the essential habits of both, and can both take (planning, selection, orchestration) and make (craft, fit, patience, finish).