It's ok to not forcefully grow your income, but stagnating income is correlated with your skillset becoming outdated. If you haven't worked on your network or your interview skills, you can find it hard to find a new job. In addition, a less career-oriented person would find working on those less enjoyable than keeping their skills up to date and likely do them even less.
The reality is that software engineering automates software engineering jobs the most. As a result, people in this industry do highlight the importance of not neglecting your skillset.
However, I wouldn't take that as them trying to maximize their revenue. They've simply found that they need to do a deeper analysis on skills to not get automated out of a job.
You're getting pretty far off-topic (and actually making a point that I'm trying to make myself in a separate subthread). This is the sentence I was pushing back against:
> All those years of missed revenue add up quickly
The reality is that software engineering automates software engineering jobs the most. As a result, people in this industry do highlight the importance of not neglecting your skillset.
However, I wouldn't take that as them trying to maximize their revenue. They've simply found that they need to do a deeper analysis on skills to not get automated out of a job.