> The corporate income tax rate could be zero for all I care; the money's taxed when it gets transferred to the actual people that own the corporation, anyway.

As far as I know there are quite a few loopholes to be exploited which don't trigger a taxable event, loans using assets as collateral is one of them but there are a bunch of other nice holes that creative and well paid accountants/lawyers find if you have enough money for their services.