Should I send update emails about this?

I was recently elected President of a language national honor society at my school.
Should I send emails notifying my early schools about this?

For context, I applied to 2 schools early, and for one of them I know they really value leadership.
I had 5 leadership positions listed on my app at the time I sent it, but I feel like this one might additionally help my chances since it is a President position. My ED school is my dream school, so I’d like to do anything that will help my chances.

Any thoughts? Could it hurt?

Sure, it can’t hurt as long as you are not peppering them with regular emails.