Bang on.You are making my point. People with a lot of income and/or assets have the financial ability and motivation to seek out these schemes. There are many perfectly legal deferral opportunities to which only the rich have access. The point is that the marginal rates are irrelevant if people are not paying them.
By the way I am in the highest bracket and I do not pay at that rate. I make use of some of these deferral and saving opportunities, all legal. I think that theses opportunities should be examined as most serve no purpose whatsoever other than to allow people like me to pay less tax. An increase in my tax burden would not affect my decision to stay in Canada one bit. Do I like paying a lot of tax? Not at all. But I understand that is the cost I pay of being successful financially which Canada has made possible. And I also understand the BS that goes into these arguments about how excessive our tax system is and how it is impeding business at a time when stock markets and corporate profits are at record highs. So lets get real and just say people with a lot of money don't like paying a lot of tax. Or any tax for that matter. That is the only argument which is true.
Same with LaRue and his marginal tax rates for corporations of 26.5%, which of course hardly any corp. ever actually pays. Their net rate is actually 15% and which of course many escape from paying too.