It's not my job to…

Bit of a quick realization I had and wanted to share. I was working on my collection of engineering advice and specifically around my distaste for people who start sentences with It's not my job to…. I had the urge to call them a name and move on but couldn't really nail my justification for why I find these people so repugnant. Then I figured it out.

When you start a sentence with It's not my job to… you not only signal that the work is beneath you, but so are those that do it. You're a clearly superior human being for whom the thought of having to do such a task would degrade you to the status of one of those.