That's the attention-share majority, and it's the majority that gets the most press largely because it's so relevant to the press and to people who read a lot of press (investors, other media), but it's an overstatement to say it's the entirety.

Just looking at some quick stats, a little more than half of all STEM occupations are outside of "Computer Occupations", though that one chunk is by far the largest single chunk. And far from the entirety of "Computer Occupations" is ad-supported web apps.

https://www.rclco.com/publication/2021-stem-job-growth-index...

There are a lot of fucking engineers (traditional engineers - based on the definition of 20-30 years ago) out there, and a great many of them make a solid living off it. Most of them simply do their job in relative obscurity compared to the computer workers these days.