Wealth is the power of exchange. Once you realise we live in a trade economy and that you cannot survive alone, you'll realise the power to extract goods from people is the absolute most important power. In certain periods of history, this power was manifested in whoever had the biggest spear. Then came guns. Today this is manifested in money, or what we call wealth.
This is what differentiates us from lower intelligence beings.
This is what differentiates us from lower intelligence beings.