You had said from the beginning that NPC was only one area of interest. It is possible (not knowing your school, of course), that one of the MCGLOs might be a better fit for you. Or, since you really seem to like the philanthropy aspects, a service sorority might be a good idea too.
The dress is gorgeous
Maybe you should put it on and treat yourself to a special dinner out! Pamper yourself, take care of you. Best of luck to you in all of your collegiate endeavors.