I just finished reading @nateberkopec's latest newsletter and something he said struck me: "Consciously or not, most developers see the systems they work on as extensions of themselves, which means that they want that system to be clean, organized, and performant."
I realized that this was very true for me earlier in my career, but has changed dramatically in probably the last 10 years. Early on, every web app I built was an extension of myself, my philosophy, my aesthetic sensibility, and the current representation of my skill.