These two comments make me think that a careful study of Conway's Law, its implications, and related understanding of people's behavior when organized to work together may actually be the most important knowledge for software architects.

Barry Oshry is one author that has investigated and detailed organizational behavior and developed simplified models that can provide insight and guidance for daily practice and planning. He has multiple books available, I recommend "Seeing Systems". Here's a video recording of a talk covering some of the content: https://www.youtube.com/watch?v=VYpO-pK7IFA