Wealth is pinned to production and currency is pinned to wealth. You fundamentally misunderstand what wealth, money, and power are and how they function in society. Alienation from society and idealism distort the nature of these subjects. You’re right to question the way these things function, but you’ll not get much further than MMT or other idealist cul du sacs. If you want to understand how wealth operates as a basis for society, they you’ll need to start to study https://www.marxists.org/archive/marx/works/1847/wage-labour/.