I don't know about this idea. For most of my career, I've tried to be sidekick in the sense of trying to fulfill someone else's goals with say a secondary goal of mine that ties in to that primary goal, but it has always ended up in conflicts, where I couldn't simply bring myself to ignore the hero's stance/decision(and still work with him/her). Is that a good enough reason to try to be a hero? This post still resonates with me, but that doesn't mean am about to go around hero's for whom I can be a sidekick. Majority of the empirical evidence that I've (personal experience) accumulated suggests, that won't really work.

May be the distinction is not as sharp as you think/believe it is?