This is exactly opposite my experience in my 25 year career.

The best people I've worked with were the people who learned the ins and outs of the business they were making software for, not the people who learned how to write code really well or read logs or learn software architecture patterns. Those people (and I've been one of those people) often go around looking for nails for their hammers rather than really focusing on the customer need.

It takes a really sharp brain to pick up and learn an area of expertise that has nothing to do with software development, and figure out how software development makes that domain better.