Who can improve an industry?

Even the most superficial scan of industries over the past century is a narrative about industry transformations. These transformations weren't necessarily the domain of industry giants or geniuses. Some of the most significant came from industry newbies and outliers.  

Perhaps the most salient factor for the most significant is that they didn't just want to improve their business. They dreamt of doing things that were industry changing. In so many examples, countless people benefited from this dream in countless ways.