"Understand the business aspect of your work, and what makes money. Eventually, only that matters." Applies only to commercial organisations (and no, even with

"Understand the business aspect of your work, and what makes money. Eventually, only that matters." Applies only to commercial organisations (and no, even with those money is not the be-all and end-all) so not impressive as a number one, at least with that wording. Understanding business is clearly key though. TBH that and the rather self-satisfied "it is useful to any software engineer, it is especially useful to senior engineers." on a rather enigmatic website lacking in other interesting writing put me off considering it further.