No function is related to business. Te is about action and method. It observes action of people and objects and remembers the method that is utilized which it views as efficient to achieving a goal hence external dynamic. Any Te type may like a number of activities and work not just want to get into business. For example a LSE musicians may say that this is what they could do and wanted to utilize the skills to make a living. Is that business? Some may say that the intensity of work or dedication to the work is.