These things are true. It's why I don't compare the two. I have found watching the development of Blender to be fascinating. It's happening in plain site with many cooks in the kitchen. Where as You are one and have the final say even though you ask your users for input. So is the individual superior to the committee? I personally believe a better product is much more a possibility made by one person making the final decision. The committee will more likely make a compromise when there shouldn't be one.
Design is interesting as it's about trying to make an object seem intuitive. There is a book I think is pretty interesting. "The Psychology of Everyday Things" by Donald A Norman. It's really worth a read.