One of my favorite sayings is "You don't pay me to turn screws, you pay me to know which screw to turn." The knbowledge of how anything works can arguable be the first determinant of that thing;'s value. In that regard, we tend to de-value the price we are willing to pay for that knowledge - which is normally attached to a human resource. In the more recent times of technology, and with the advent of the internet, once could argue the value stream of knowledge is less. However, many tasks cannot be reproduced in a video. When negotiating your next salary, it will be helpful to know how many screws you can claim knowledge of - and what the value of that knowledge can be. I suggest keeping an extended skills lit handy - demoting those items to which you may claim proficiency.

 https://www.linkedin.com/pulse/ship-repair-man-story-why-experts-get-paid-more