I think this is a Fight Club thing. The whole you determine your level of involvement exclamation. Along with that, you gotta know your role. What are you bringing to a particular project? Why are you there? Who are you to the success of this endeavor? I think my role goes something like this:
Push to bring design work that’s creative, cool, appropriate, and as original as it can be to whatever the project is. Thoughtful solutions for relevant outcomes. But I know the clients I’m working with are doing the real work. They’re making the real change, and I’m here to serve those ends. Logo, website, poster, etc. I execute the design best I can, they take it from there.