Has absolutely nothing to do with Capitalism. It's core to existence for any living thing. The need to create value, be productive, acquire food, trade for something, and so on, to sustain one's self. No matter what you are, if you're living, you have to do this, or someone else has to do it for you.

If you live in a society where the government, or church, or ... whatever entity, provides everything for you, that still requires someone else to do work for your benefit so you can exist.