Well, John, find the true aggregate then - bet you can't: they all lie.

In a rational tax system, tax as a proportion of true income rises as income rises. I'd try to limit the marginal tax rate to say 80%, although incentivisation is a puny argument - the rich are junkies - they do what they do because it's there to be done.

But you have to find the true income. Close all the tax loopholes.