I can now sell this widget to design to several companies for a percentage of the gross sales. I stand to make a lot of money. Why should I be taxed on that money at any higher rate that someone working for $30 per hour (a basic living wage in most parts of the US)? Should I not be rewarded for the risk, time and outside the box thinking?
Yes Darth you should be rewarded and you will. Now let's say you are an independent farmer. A corporation begins buying up indepedent farms, but you hold out. Your farm has been in your family for generations and it gives you a great deal of pride. The corporation farms get stronger, helped by government subsidies (tax money). It gets stronger than you because it has greater purchasing power. You have to charge more than they do because your operating expenses are simply higher. You don't have the same resources or power that the big corp has, so you can't wait for costs of things to go down, nor can you really bargain for better prices.
So now your farm becomes worthless. You have some choices and one is to go work on the corp farm for a wage that they think is fair. Is it fair? It is what it is. And the corporation continues to grow all the while receiving subsidies.
Or perhaps you work in a factory. You are the third generation and your family has helped make this company great. Of course you didn't invest MONEY, but you did invest labor and time. The company sees that labor is a LOT cheaper overseas and packs up shop and moves. Is it fair? You don't have the money to move overseas.
The fact is that none of these companies got their alone. They got their with the help of American workers. The unwritten contract is "I will work for you, you will give me work." The company benefitted from subsidies and shelters and other loopholes, paid for by their workers' tax dollars. And the company says "Thanks and f*ck you!"
NO ONE gets there alone! NO ONE. Once you have all the money, who will be left to buy the product? Once you have all the food, who will stop the people from simply taking it? Once the rich are the only ones to get health care, who will care to treat them?
So yes, you should benefit from your great idea. But you didn't get there alone.