We do get to choose how to spend our money, and rich Americans who accrue millions or billions of dollars of personal wealth especially do.
No. Capital is power[0]. Not just power to choose, but power to shape the choices of others (through marketing, propaganda, laws, etc.). Not power for the greater good, but power merely for its own sake -- because those in power fear losing their power. So they tend to use the power (capital, money) they have in order to consolidate and amplify their power base, which includes reforming the choices of others (meaning you and me) to their own advantage. In this way society is "creordered" to serve and benefit those at the top of the power pyramid.