Gordon Bell passed on this month. I was a latecomer in Gordon Bell’s life. But he made a lasting impact on mine.

Kodak and Polaroid, the two most famous camera companies of the 20th century, had a great partnership for 20+ years. Then in an inexplicable turnabout Kodak decided to destroy Polaroid’s business. To this day, every story of why Kodak went to war with Polaroid is wrong. The real reason can be...