Where is all this money going to come from? Labor is already the largest expense for most companies, and executive compensation is only a very small proportion

Where is all this money going to come from? Labor is already the largest expense for most companies, and executive compensation is only a very small proportion of it. If the companies are have all their profits taken away (in the form of increased worker pay), their capital will vanish as well (either invested elsewhere or spent by the former investors on assets & services), and they won't be able to operate.