On the argument that a progressive tax system amounts to income redistribution:
Those in the US who are fortunate enough to have wealth are beneficiaries of a system where we respect the rule of law–where property rights are honored, where due process is required before a person can be deprived of liberty or property, where people are largely free to move about without worrying about being kidnapped. We have a relatively stable currency and economic system, relatively few riots in the streets (so far), and we don’t have to pay bribes to carry out business. Strong institutions are the basis for a system that rewards investment. In spite of obvious flaws, it is a remarkable system, and its benefits are particularly important to those with the most money–because they have the most to lose when the system fails. It amazes me to see the wealthiest among us scrounging for a few more dollars that they don’t need, when their quality of life would be so much better if they improved the society around them–so that they wouldn’t have to be bothered with homeless people on the streets, with potholes that bend the wheels of their Maseratis—and ultimately, with the real danger of a collapse of the society that has so benefited them, if trends continue. How satisfying would it really be to be fabulously wealthy, but to live in a gated, guarded enclave with a Favela down the street, and sewage running down the gutters?
Everybody benefits when we have more equal income and wealth distribution, and when our public facilities are properly funded. Even the wealthy. This is why a progressive tax system makes sense.