Who are the ones who are truly greedy?

All over the TV, papers, political speeches and drunken conversations in bars all over America, certain people are always accused of being greedy.
Usually, these are successful business people, physicians, financiers and other imagined enemies of the common man.
The one group that seems to escape the same scrutiny are politicians, particularly those at the federal level.
Senators, congressional reps, bureaucrats and others simply take and take and take.
They produce nothing.
The source of their income is not some part of the value they produce.
It is simply what they take by force from what other people produce. They get paid, not what the market determines, but what THEY determine.
They do not contibute to Social Security. They have a better retirement program.
They do not have to worry about their medical coverage. Theirs is as good as it gets.
They never get laid off or take a cut in salary.
And when they want a raise, they simply vote to take it at midnight on a weekend.
And yet, they are not called greedy by the same crowd that despises people who actually do something for a living.
Why is that?