It takes two to invent anything.
Compensatory genius. One person contracts a rough idea (invention) and a second refines it (innovation), compensates for its inadequacies and inconsistencies (go to market). The process can also extend over decades.
It’s also a Don Quixote and Sancho Panza dynamic: Sigmund Freud and Wilhelm Fliess. Picasso and Georges Braque. Martha Graham and Louis Horst. Stravinsky and Sergey Diaghilev. Steve Jobs and Tim Cook.