Kodak like Sears made money on retail consumers. IBM like Microsoft make a majority of revenue on Enterprise customers and service contracts.

I’m not sure that’s true. In the days of film the average consumer shot <1 roll per year. Whereas a professional photographer would shoot a dozen or more rolls per day. Their biggest customers would have been newspapers and studios buying 10,000 rolls at a time on a regular basis

Have you heard of EDS? How about HP global? They were selling to enterprises and still became obsolete..