No problem.
I'd agree with the assesment that Valen was much more important to the Minbari than Sinclair ever was to the humans. He was never promoted beyond a Commander, and while Babylon 5 was important to humanity, it's only under Sheridan's rule that it became truly crucial for the future of humanity, with the Shadows war and tyrannical rule on Earth. Valen probably saved the Minbari, and helped in the fight so that humanity and its allies stood a chance against the Shadows 1000 years later.