Do you not understand tax brackets? I'm not advocating taking 80-90% in total. I'm advocating that there should be a bracket near the high end that gets up to that.
Our tax brackets are as such:
10% $0 $8,925
15% $8,926 $36,250
25% $36,251 $87,850
28% $87,851 $183,250
33% $183,251 $398,350
35% $398,351 $400,000
39.6% $400,001+
I think there should be more brackets. Something like:
45% $800,000
60% $2,000,000
70% $4,000,000
80% $8,000,000
90% $16,000,000
And that should account for all of your income.
And then I don't think that inheritance should really be any different. It's income. If I get taxed for working to gain that amount why shouldn't I be taxed the same for not working and getting that amount?
As for justification, it's simple: Money makes money. The more you have the easier it is to earn it. If we want a truly free market wherein the good ideas are the winners, then we can't have money free flowing to the top. That hinders progress in many ways. To put out a very simple idea, if I have a pretty good business idea someone at the top of the food chain can just stomp me out with money very easily if I threaten their existing model. That's shitty. Another example is the kid who has no real drive or work ethic. Through inheritance he can do so much more than a kid who puts his entire heart and soul into everything he does his whole life. Money can do so very many things, and is far to powerful. You can buy the political structure with it. You can create laws with it. You can circumvent laws with it.
The other thing is that in our society money flows upward. It's supposed to flow in a circular fashion. It should be like the chain on your bike tires. It keeps society moving liek that. It should go to the top then get spend downward and so on. You give your money to businesses, and they pay people. It should be a back and forth. It's not working that way right now. Money just goes up and sits there. People on the bottom get shit on. Well, the only way to recirculate that and make sure that society keeps moving is to tax it, then. I'd possibly lessen those tax brackets once society gets to a better equilibrium, but right now we need a lot. The inequality here is unacceptable.
And last, what the fuck is a "financial legacy" and why should it matter to anyone at all?