When I went to high school, "normal" kids wore pink izods with the collars turned up. I don't regret the choices I made one bit. But if for you conformity in the face of adversity (appeasement, really) works, go for it. For me, being strong and being true to myself rates much higher, and I'm willing to take some crap for it.
If you think wearing a stupid T-shirt proves that you are strong and true to yourself, your expections of yourself are extremely low.