I empathize with you -- I really do -- but I have to go with what I said just above. I don't even think there's a limit to how many ECs you can put on the AACOMAS, so you can easily add it on, but assuming that your other ECs are great and paint a picture of the kind of person you are, something like this will probably pale in comparison. In that case, it might catch the ADCOMs off-guard if it isn't of the same tone as the rest of that section of your app.
It's pretty easy to mold almost most secondary prompts into what you want it to be, and I think talking about intangibles such as your passion for representing and supporting your community would be a great theme/topic.