Previous poster didn’t claim billion dollars in revenue - just that to become a billionaire. Take Facebook acquisitions for example - WhatsApp, Oculus - low headcount (less than 500) for multiple billions.

> low headcount (less than 500)

Indeed. There's a big difference between 1 person and a team of hundreds.

There are a lot of trusts out there that operate with no full time employees and make billions in revenue. Maybe getting returns on investments isn't really a company, but it's also hard to say something like a hedge fund isn't a company.

Those trusts earn their money by investing it in enterprises that actually create value through the use of many employees.

I definitely would not describe myself as a socialist (I have an academic background in economics) but it's pretty clear that the labor theory of value is not contradicted in the slightest by citing examples of lone rent-seekers.