That's an interesting idea. I wonder what, fundamentally, caused the marginal tax rate to fall? Is it the perception (or reality) that governments waste the tax

That's an interesting idea. I wonder what, fundamentally, caused the marginal tax rate to fall? Is it the perception (or reality) that governments waste the tax money? Or is it simply the corrupting influence of wealth in govt? I don't see how any of these would not have been true earlier though.