I've always had something of a problem with political art. Far too often people expect you to lose your objectivity and only look at the message, not at how the message is delivered. It's like all of a sudden we're supposed to forget about the quality of the art because the message is so important. Maybe I'm just an elitist snob, but it pisses me off when people expect you to say how wonderful something they did was because it was about this or that, not because it was a beautifully written story or exquisitely drawn illustration.
I'm in agreement with saying art should hold a mirror up to society and there's nothing wrong with deliberately setting out to create a piece of art that makes a political statement. However, it's equally important for whomever is doing the creation that he or she are able to set aside the issue that originally inspired them and be able to focus on how best to communicate it for an audience. No matter what you do, though, creating political art is such a difficult balancing act, as you try to meet the needs of both the art and the issue you're dealing with, that not many can pull off.
However, if you're interested in seeing an example of one artist who does an exemplary job of accomplishing it check out the recent release from Perceval Press, US Future States Atlas by visual artist Dan Mills. Subtitled "An Atlas Of Global Imperialism" the book gathers together a series of satirical maps Mills created delineating countries the United States could invade in the future and annex as additional states in the union.
For each country, or "state", Mills has taken an actual image of it from an atlas and then begun its transformation into being part of United States Global (USG). (Note: USA + USG = United States Empire [USE]). First, if these new states are more than one country, made up of bits and pieces of a few adjacent countries, or as in the case of "New Venice" (formally Venezuela) divided up into separate states, their new boundaries have to be defined on the atlas. The new regions are painted in either one or a few exceptionally garish colours that make them stand out from those in their immediate vacinity.While in some instances it makes them appear to be a mockery of the way in which relief maps designating altitude and geographical formations are drawn, the distinctiveness of the colours also puts me in mind of the way in which maps used to designate countries that were once part of the British Empire with bright pink. Even in post colonial days you could look at a world map and spot Commonwealth countries, former colonies who still wanted to be part of the same club, dotted all over the world.