Military medals are also worn on the right breast when earned by father/granfather/uncle. In the earlier days of the legion it was easy to differentiate those members from an associate member. For instance, I could wear the gongs earned by my forbears on my right breast as a way of recognizing thier service and legacy.
Personally, I would not do so. That would be a betrayal of my uncle Bob. He had a chest full of gongs from the Great War. Never wore them, paraded or mustered at the Legion. He did not want the reminders. A lot of veterans still do not want the bloody reminders of combat, peacekeeping, or general service. They will not join the Legion.