@snood,
It's not that hard to understand. Many people who will never be rich still dream that they will, still think that they are looking out for their own eventual interests. The same thing could be seen in the early recruitment of the Confederate States army. A lot of people who were not slave owners, but dreamed of a day when they would be sufficiently affluent to become slave owners, enlisted for "the cause," even though it was not actually a cause in their interest.
Personally, i consider a lot of the propaganda about how people who are rich have earned it through hard work to be bullshit, and a case of people repeating the mantra of their dreams. How if they work hard, they will someday join the ranks of the rich. So they identify with the people whom they someday hope to be. However, most of the people who enjoy true wealth, who truly are rich, get their income from capital gains, which is taxed at a much lower rate than so-called earned income. Capital gains are taxed at a rate lower than the middle class pays on their earned income, and less than half of what the highest tax brackets charge for earned income. To get capital gains, you have to have capital to invest. It is only rarely that people accumulate the necessary capital for large-scale investment through working hard all their lives and saving.
People who vote to cut taxes for the richest Americans are being idiots, although they don't think so themselves. The richest people in the country don't rely on earned income, they rely on capital gains. At the 15% tax rate on capital gains, they're already on Easy Street as far as taxes go.