Cognition is a field that I have an interest in, and fall into the camp that most people should have at least a passing knowledge of particularly given that many of the associated constraints have major implications on how we work (and therefore lack of understanding breeds false beliefs). In addition to personal assessment and enrichment, understanding cognition assists with interactions both professionally and otherwise in terms of being able to convey knowledge, persuade others, and foster a healthy culture.
Professionally for the sake of building manageable systems and enabling personal laziness I strive to manage cognitive load. The number of "chunks" available for use by executive functions tends to be very low and therefore expecting people to consume broad swaths of information is a pretty solid recipe for protracted onboarding times and misunderstandings.
Seeking to incorporate learning about learning (meta-learning) can help break patterns of inefficient and ineffective knowledge transfer and aid in developing staff.