Look at what you just said, then look at Heavy Metal. How many bands dont wear black and pretend to hate the world, how silly would marilyn manson look in a shellsuit on holiday at Disneyland Paris? My point exactly.
Its the whole style of music. Imagine Raves without glow sticks, festivals without camping, country music without dodgy hats, pop music without the typical pretty boy appealing to the 13 year old girl, garage tunes without townies (or chavs as they are suddenly known) and so on and so on...