Another interesting thread.
It's funny how bands get labelled. I'm a Billy Bragg fan, but most of his songs are not political (in terms of political with a capital 'P' at least). For every Political song he has, there are three or four love songs, etc. The Clash, another favourite of mine, had just as many love songs, social commentary songs, and so on as overtly political songs. I think it just happens to be that NMA, Bragg, The Clash (amongst many others) occasionally speak their minds on an issue that genuinely moves them, the miner's strike being a classic example, and that is what they are remembered for...and which is no bad thing in my book.
All the best,
Johnny