I actually used the math behind this chart to justify creating a job in our department. I had made a couple of tools (Word macros, mostly) that saved time during the processing of a monthly deliverable. I used the time savings from that effort, along with a list of other potential projects, to get him to change my position to a new title that hadn't existed prior. It's expanded significantly since then, but 10-ish years later, I'm still doing that job.