Of course it's still a wide gap, but let's not pretend these people are rich enough to retire after two years on that salary.Of course they're not retiring - someone earning enough to hit that 75% tax rate isn't living like your average mope. Give them five years, though, and they could easily put that money into blue chips, bonds and other low risk investments and support a middle class family with interest.
And while I do see the difference between entrepreneurs and those who live off the margins of financial transactions, I'm not really sure why they should be treated all that differently as far as tax law goes. Kids grow up wanting to be royalty, by college the fantasy is still there, now they're just Business Superheroes, because that's how we treat the rich.
Entrepreneurs aren't magic. We're people who've decided that we either don't like working for a boss or who've looked at the numbers and said, "hey, I think I can make more working on my own than for someone." Should we be in awe of someone who "worked hard" for a few years to get paid a couple million dollars to have a competitor shut their product down? Or amazed by a company who has managed to sell their stockholders on the idea that it doesn't need to be profitable, allowing them to destroy (or disrupt, in SV terms) traditional markets, where others can't compete, because their shareholders actually demand they turn a profit.
Now, are you telling me these Superheroes of Business will look at a progressive tax rate and say, "you know what, if I thought I could make $3 million after 3 years of hard work, I would do it... but since it'll only be $2.7, I guess I'm gonna stick to my day job where I make $150k/year." Because that's the logical conclusion of what you're saying.
why shouldn't everyone pay 100% taxes and have the state pay for everything
Probably because that's not the logical conclusion of the reality I've described, although a lot of American businessmen do think the opposite should be true: all services should be privatized, yada, yada. That's crap, there tons of services that require long term, massive investments that will get shitty ROIs but benefit society and the economy as a whole.
We all know that, we all think people should be rich, I just don't think that income tax has the kind of dampening effect on entrepreneurship people claim it does. I for one would rather pay 50% on my 1.5mil than 25% on 150k, should it come to that.