Yes, and I agree with that. But my reply was to a comment that seemed to dispute that idea and imply that if you wanted to stop growing at some point, then you should shift to academia.

That said, there is an expectation of unlimited growth and it comes from a different source: ageism. At my age, the implicit expectation is that I will apply for a staff or even principal role. Applying for a "merely" senior role often rings alarm bells.

That trend -- and certain others -- are what's making me consider taking up teaching instead.