Employees contribute both tangible value (actual revenue) and intangible assets (your personalabilities to create value and find money), so direct-revenue-generators and all other employees can contribute in important financial ways to the company.
Psychologist Amanda Diekman and her team surveyed 333 introductory psychology students (193 women and 140 men) to find out about their career interests, their abilities in different academic areas, and the importance they placed on certain personal objectives.