Teams gather around ideas, without the spark you have no fire.
Both are equally important, but I understand where you are coming from.
Yesterday I walked away from a startup that was created around my initial idea. Sucks to walk away from that but I couldnt trust the players at the table and eventually it would of gone south and I would of stressed my way into heart failure as a result.
Execute your own ideas if at all possible. The barriers to do so get easier and easier every day. Learn accounting, and get as many good biz mentors as possible. Soak it all up- and own your own creativity- because there are millions of people who cant create for #!@$ who are just waiting to pounce on your skinny and walk right out the door with it.