What underlying cause contributes to the systemic inequality observed in capitalist societies, where the bourgeoisie profit from the labor of the proletariat?

In capitalist societies, systemic inequality often arises from the way wealth and power are distributed. The bourgeoisie, who are the owners of businesses and resources, tend to profit from the labor of the proletariat, or the working class. This happens because the bourgeoisie can pay workers less than the value of the goods they produce, keeping the extra profit for themselves. For example, if a factory worker makes shoes worth $100 in a day but only gets paid $50, the company owner keeps the remaining $50 as profit. This difference creates a cycle where the rich get richer while the working class struggles, contributing to ongoing inequality.