it definitely has problems. However I think the concept is sound enough. It was sound enough until it became a bloated pig without benifit of lipstick.
People who become wealthy in capitalist societies do not do so in a vacuum. If there are not some that choose to become teachers- a path that rarely if ever leads to wealth, then there is no educated workforce to draw from. The commercial traffic that drives the enterprise would not be possible without the roads. International treaties and trade acts may benefit an expanding business. Law enforcement may have extra work in protecting and recovering valuables from a business. Not to mention that the greatest single variable in determining one's opportunities for success is the status of your family. Let's be honest, how far would W have gotten without his family connections? Certainly not the presidency. Yet someone more insightful or thoughtful may not even get a chance to exhibit their abilities due to their family circumstances. No one ever said that life itself was fair or unfair. It simply is what it is. Taxation is a systematic method of raising revenue for specific purposes, in this case to support the .gov operation.
It certainly isn't their fault, since they had no choice about the family situation they were born into. None of this seems fair to me either. I think we have to find a balance between encouraging innovation through the market while also leveling the playing field to a degree to make sure that our best and brightest have opportunities, not only those with a boost by accident of birth. Again, your fairness argument is apples and oranges. You cannot control life. You can control taxes. Application of a system designed to reward one group based on their lack and punish another based on success is not only unfair, it is not logical.
And whether you get to live on 50 million dollars or complain about an extra 300 dollars out of 260,000 that you would pay in obama's plan: calling it a "punishment" is a very "let them eat cake" type attitude. No, it is an honest assessment of a bad plan. Why not scrap the income tax altogether and replace it with a system that is neutral in regard to who pays?
You know, the person who would discover the cure for breast cancer may not get to go to college because you didn't want to give up an extra 15 dollars a month when you are already making 6 times the median income. Or a kid may go hungry. Or maybe scale back research and unknowingly put off an important cure. Or we have to cut back on military spending. It goes on and on. No one would suggest we all live at an equal standard.
I just think you have to be a real ass to be so greedy that when you make more than 90% of America you aren't willing to share an extra 3%. I think you would be an equally real ass to insist on punishing someone for his or her success.