Re: Will this do anything...
How is that enforceable?
See Lee D's post above. Tech companies (and many non-tech US companies) think they can write any old shit in their T&Cs regardless of prevailing statute.
Interestingly, the egregious use of legitimate but unintended tax loopholes has now seen that practice coming under harsh scrutiny and changes made (eg EU proposals on common tax rates, various moves on withholding taxes), and if the Globocorps continue to try and ignore statute law in their contracts, that too will become not merely unenforceable at the individual contract level, but a criminal act in itself.