I'm not sure why we're focusing in on narratives here, but I suspect it's for not very good reasons. Whether it's good for some people to "think of themselves as sidekicks" seems less important than whether it's good for people to actually perform the actions of a "sidekick". We can talk about how to promote or discourage the set of actions once that's settled. I'd much rather present a breakdown of what I actually do day to day and why, and then have people point out what precisely it is that I'm doing wrong.