I’m so glad you posted, since D24 has started working on her common app. When talking about this topic I think she, too, was attempting to make her descriptions sound more formal/business-speak (which is how I would characterize what you were doing, more so than exaggerating).
I suggested that she go back through and make sure to use action verbs indicating leadership where applicable and to make sure the descriptions were clear so that anyone could understand them.
It is sometimes hard to figure out what is striving toward the best version of the true you vs. what is attempting to tell someone what they want to hear and losing yourself in the process.