How are you possibly measuring opportunity cost? This is the opportunity. All you can do is use it to buy goods and services or invest via lending in some form

Say you could quantify that and cap profits. What should happen with corporate profits then? After you've "paid" the original investors? Does the owner of the company now reabsorb their shares? And if we instead allocate profits to the workers, do we also allocate losses? Do workers just straight up not get paid if the company loses money one year?