Finrod Felagund was never High King of the Noldor, but I agree he was the best of the Noldor. Honest, couragous, a Great King. He keeps his oath and pays a Debt-of-Honor to Beren, sacrificing his kingdom and even his life to help in a hopeless quest dispite the treats of the sons of Feanor.
I wonder if it may also have something to do with the Doom of Mandros and not wanting to perpetuate the curse on thier children?