The US keeps insisting that it leads the world, Jim. You guys commonly refer to your president as Leader of the Free World. Guess what? Leaders are generally held to a higher standard.
The US, especially under George Bush, has not only failed to meet that higher standard, but has failed to meet even the standards applied to average countries. You ignore international laws, impose illegal trade sanctions, undermine the authority of multi-lateral organizations, attack press freedoms, transgress human rights and just generally act like some biker gangster shaking down the planet for cash and resources.
When criticized your answer, "Well, they do it too." That's not an answer, it's a weak excuse made even weaker by the fact that nobody does it more than the US does.