It's not wrong, not at all. I spent centuries dreaming of my perfect wedding and then when it actually came to it, it was completely different. Because my reality was so much better than my dream. My family, the man I love. That's what made it so special.
If it's not you, then don't feel pressured to do anything you don't want. Just don't think it's because you don't deserve things. You do a lot for this community. You have a fiance who loves you, and a little brother who adores you, good friends around you. We may not know each other that well, but I can see that much.