> They don't capture your entire value.

Explain.

> They don't decide what fraction you deserve - that's what the market decides.

No, they decide based on what they can get away with given the market situation. Do they pay the maximum the company can afford? No, they pay based on a negotiation in which they have more power and more information.

> False, they don't all do the same work.

You open a shop, you do the restocking, you man the cash register. Then you hire your first employee. He does the same thing. You own the entire company, he doesn't even a fraction.

You start a software company with a few friends. You write code, do marketing, talk to customers. You hire your first employee. He does one or more of those things. You own 100% of the company, he owns 0%.

> Some people do more valuable work than others.

Yeah, sure, how many times more productive can one person be than others doing the same job? Jobs doing real positive-sum productive work are typically within low multiples, maybe one order of magnitude. Jobs of people who are in positions of power which allow them to capture a percentage of their "underlings" output pay orders of magnitude more.