Starting a business, especially with a new invention requires a lot of creative thinking, luck and sheer hard effort.
With most inventors, creativity is certainly not in short supply, but not all of them were responsible for the spark that generated the idea. Some were, but not all. What a few have in common is that form of creativity that spots the potential of an existing invention and also the drive to convert that potential into reality and from there to hard cash. It's that sense of dynamism that you can literally feel in such people, and the tenacity of a dog with a bone: they don't let it go until the idea has been made reality.