Politicians are thoughtful people, who generally try to do what is best for society as a whole. While our media is owned by only a handful of corporations, the free market guarantees that they provide unbiased news. Both politicians and the media constrain the abuse of power. Our democracy is a better system than other countries have. This has thrust us into the role of a global policemen, to insure world peace and protect human rights.
Politicians are only interested in money and power. They serve their corporate masters, whose campaign donations put them in office. Our media are propagandists. Rather than monitoring the abuse of power, they work to promote our acceptance of it. The real political agenda is accumulation of wealth for our elites. Permanent war is just another tool to maximize profits.