Here are the income distributions of two societies. That is, this chart shows how large a percentage of the population (y-axis) in each society earns a certain salary (x-axis). I’ve have not put numbers on the axes to keep this independent on actual money. While it may not seem so, the area under both curves is the same, i.e., everybody is reflected in both charts.
Now, of course, the question is:

Feel free to motivate your choice in the comments.