How would different currencies effect capitalism?

Capitalism depends on two values that share a currency: money and capital. Money is liquid currency that freely flows through the economy. Capital is money that has been invested, in order to generate profit.

Under capitalism, people have private property. Private property enables the capitalist class to extract surplus value from the workers. The way they do this is under-compensating their workers. They pay them less in wages than the workers generate in value. The surplus is called profit.

But what if profit was in the form of a currency that was completely divorced from the currency that wages are paid?

We don’t need capitalism to have managerial or administrative duties

One argument I've seen against communism online revolves around arguing in favor of "managerial labor" - implying that under a communist system, that type of labor will no longer exist. A pithy expression of this argument is "someone has to write the checks!".

But, managerial labor is different than owning capital. In very small businesses, the owner is the manager, but there's nothing necessary about owning capital to then do managerial duties, and there's nothing necessary about being a manager that involves owning capital.