Have you never heard an executive complain about workers being expensive while being compensated several million per year?

If you're enough of a bigshot in a company large enough to pay you that kind of money, then yes, workers are expensive. Hundreds of workers are pricier than one executive.

Really? 300 workers making $30k/year is less than $10 million.

Well, the workers are being paid less than $10 million. But if they receive any sort of benefits then their cost to the employer goes up quite a bit. And you also have to factor in payroll taxes. The cost of a worker is not just his/her salary.

True. And that goes for the executives as well, more so in fact (e.g. better health care plans and so on).