Alex is a naturally spontaneous and free-spirited artist who just started a new job at a highly conservative law firm. At work, Alex is meticulously organized, speaks in a very formal manner, and exclusively discusses topics like market trends and legal precedents, avoiding any mention of their artistic pursuits. This behavior is a stark contrast to their relaxed and creative personality outside of the office. Based on the psychological concept of a 'mask' that serves as a compromise between an individual and society, what is the primary purpose of Alex's behavior in this professional setting?