You can brood over the fact that things should be different, but the fact remains, and it probably won't change. This may seem contradictory to what was said earlier, however, although it is unjust to judge a 'book by its cover', that's how much of it is done. You want to make the best presentation of yourself, without necessarily worrying about it. You needn't be rich to look smart. Personal hygiene takes care of much of it, and the rest can be done tastefully, within a reasonable budget, if you wish.
Many people try to get attention by being shocking in their appearance.
They try to defy a sense of what is 'normal'. They are trying to be freaks. They go out of their way to do something that will attract attention to themselves. Individualism is important, and, as long as they aren't hurting anyone, it's fine. Their attention is short lived though.