I don't get where the stopping point is. When does using your resources to gain more resources start to become immoral? You concede that the nameless workers ou

I don't get where the stopping point is. When does using your resources to gain more resources start to become immoral? You concede that the nameless workers ought to be capturing some economic power, which acknowledges that it's a basic human right to accrue economic power. What you won't seem to entertain is the possibility that an investor is fairly accruing economic power by using his existing economic power to fuel another profitable enterprise. If you keep repeating that process, your capital compounds, but there's no principled reason to say that any step in that process involved extractive / exploitative gains.