The Greek philosopher, Epictetus, who lived between 55 and 135 AD, said, "Wealth consists not in having great possessions, but in having few wants."
This sort of wealth, of which Epictetus spoke, is very different from the sort of wealth that most people seek, which is a wealth of things fulfilling countless desires. Such a wealth cannot really fulfill.
The reason is that desires are never fully satisfied; at least not permanently. When we fulfill a desire, it increases our attachment to the pleasure caused by that fulfillment, and increases the strength of the desire. The result is that the desire soon returns stronger than before.
True joy and happiness actually already exist inside of us, and become obscured by our striving to fulfill desires.
If, rather than increasing desires, we seek to diminish our desires, then we are more and more able to feel our native happiness. Thus, the fewer wants, the richer in happiness.
Isn't that what we all really want anyway?