There’s leading and there’s implementing, and the difference is about more than creativity or authorship.
You can lead something you didn’t create with purpose and integrity just as well as the project you conceived. Leading is about ownership. How much do you care about this event, this idea, this experiment–and how much have you staked on the outcome? If you care, I will follow you.
Just don’t implement. Someone else’s idea or yours: implementing is just following the steps that are supposed to get you a predetermined outcome. There’s no mystery in implementing and no curiosity.
Martin Luther King didn’t implement the civil rights movement. He led it.