Aha, "drive them away" to where?
If we didn't have handy corners and atolls with no rules we could, and should, have a global tax system.
That way, we could avoid the nonsense of of foundations, false tax 'residency' etc., etc.
I imagine that, if there was a balanced global system then the likes of Dell (and he is not the worst, by a LONG way) would not have the opportunity, and maybe not the interest, in hiding money.
We might need a better way of controlling how 'national' money is spent, to ensure a fair system, now there is an objective to look for.
I always wonder what the super rich do with all the money, after all they can only eat three meals a day, like many of us.....