In the years following WW2, the upper band of taxes was around 80%. It began to really go down as a result of Reagan's policies. The good old Gipper! Shame his wife was a...well, google it. Can we really say society is a better, more equal place as a result of the lower taxation on the rich.
I think when Thatcher talked about "trickle-down", she wasn't talking about money, or even water
