Eat what you want and dress up as you desire, as long as extravagance and pride do not mislead you.
- Hadith The Prophet Muhammad (SAW), as reported by AbdAllah ibn Abbas
This seems to state very clearly that rules of diet and dress are means to an end, not an end in themselves. It also implies that if you follow any religious dietary and dress codes out of extravagance and pride, you are hurting yourself spiritually. I have known Muslim women who refuse to wear hijab in the west, because it calls attention to one's self unnecessarily. It seems to me that this hadith backs up that judgment.