I'd like to hear you explain how a tax on incomes over $1M per year prevents the bottom group from moving up. Go for it.
For some reason, people think that because a business or a person makes a lot of money that they "have it made." In fact, the bigger you get the more challenges you face.
Take, for instance, two companies. Compare two companies like Wal-Mart and XYZ Corporation. Wal-Mart's annual revenue is $419 Billion and Gross Profit Margin is at 24.7%.
Our pretend corporation's revenue is $100 million, small for a big box retailer. More likely, their margins are not as boisterous as Wal-Mart's, let's pretend their margin's are 15%.
The Federal Government decides to increase taxes by 5% on these corporations. Question, who benefits the most?
Actually, Wal-Mart would benefit from increased taxes for a number of reasons. First, Corporation XYZ will be forced to either raise taxes (margins would probably be put at risk of faltering and many of their stores will now be in the red). Wal-Mart, being a bigger company, can survive with single digit profit margin in needed. XYZ could not because they have less of a revenue stream. One bad bump, XYZ's investors leave and invest in Wal-Mart. Wal-Mart can afford many more bumps. Thus, your increase in the corporate tax rate by 5% hurts XYZ by 10% because their market standing is not as strong as Wal-Mart. The 5% hurts XYZ much more than Wal-Mart.
In order for XYZ to catch Wal-Mart, they have to work 10% harder than Wal-Mart had to work to get to the same position. By increasing taxes, you created a situation that solidifies even more Wal-Mart's position.
The people at the bottom end of the scale are usually hurt more than the bigger people that you hope to "punish."
The solution? I believe there are two solutions. First, get rid of all corporate taxes. This will allow all companies to compete on a level playing field, keep loopholes from being abused for gain, and force the big companies to stay in America to compete with other American small businesses.
Secondly, get rid of all corporate welfare. This usually goes to bigger companies or well networked companies.