Well managed fear is an important part of safe flying, and respect among your peers. In my opinion, fearless pilots should also be planeless It is an awareness of fear, and managing those circumstances well which is your best long term accident prevention strategy.
One fearless pilot who comes to my mind, has done a lot of stupid things, been violated countless times, bent a few aircraft, and caused a few of his friends to take a few steps back. I hope to never be like him.
I'm happiest with a pilot who has that twinge of fear from time to time, it'll keep them thinking about what they are doing!