When you innovate on a regular basis, you create another problem for yourself...how to evaluate new product ideas to see which ones to pursue. Evan Williams has outlined a useful set of criteria to do just that in his article: "Will it Fly? How to Evaluate a New Product Idea." He has even applied the criteria to some of his own creations like Blogger and Twitter.
An idea stands a better chance of surviving if it is not attributed to the individual who conceived it. Otherwise, the idea carries with it all the baggage and perception of its owner, good or bad. During idea evaluation, people struggle separating their feelings about the ideator from the idea itself. If they like the person, they like their idea...and vice versa.