I find this a little bit confusing. The primary function of jobs is that it's hard for workers with specialized skills to extract all the value from their labor

I find this a little bit confusing. The primary function of jobs is that it's hard for workers with specialized skills to extract all the value from their labor alone, so they get together in organizations to do it, and the people doing the organizing (and capital investing etc.) get to skim a healthy chunk off the top (too much in our current economy) for doing so. Is this the same as what you're saying, or different?