Ayway, it's easier to organize efficiently an economy based on a dozen of stable products with well known necessities than it is to organize one on our times.
Also, an ecomomy being efficient does not make it a good one to live under.
That said, we currently use money to build roads and provide food and other goods to the military, which we fund through taxes. Taxes are just a more nuanced, easier-to-administer form of "provide x% of your labor to the central authority". The evil part here is the absolute monarchy that makes self-interested decisions about what to do with that labor, but the Inca were hardly alone in that respect.
Only with technological progress are we capable of stronger individualism.
I only mean to answer the question, "Could you say labor is forced if you have a choice between starvation and labor?"
1775 called, it wants its understanding of economics back. https://en.wikipedia.org/wiki/The_Wealth_of_Nations