Sometimes we forget how fortunate we are relative to the rest of the world because the media is saturated with stories of the super wealthy. Here is a website that will rank you among the WORLD's population. That should provide some perspective as to how lucky we are.
However, relative to other Westernized modern countries, the US does not look so equal. In fact, the inequality in the USA is closer to China, Mexico, Venezuela and Argentina and even Cuba!
This map shows the inequality present in countries around the world. The bluer countries are more equal and the more red are less equal:Notice how many countries are more equal than the United States.
And here is a post showing that the US has gotten more unequal over the past several decades.
Here is another blog's post about the growing inequality in the U.S.
Here is a post from the Society Pages about the damaging effects of income inequality.