Wage theft makes up the major part of all theft in the US [1]. At least some part of the value of companies is coming from this theft. As an example, look at Amazon and how they treat their warehouse and delivery workers. They're not just working them like this for the sake of it, but rather it's an example of concious wage theft in order to save money and, thus, increase the value of the company.

1: https://www.tcworkerscenter.org/2018/09/wage-theft-vs-other-...