It was believed upto the seventh and eighth decade of 20 th century that IQ plays the most important role in business and earnings. More the IQ more the income. The formula changed in the next decades and EQ (emotional quotent) replaced IQ. Now it is turned to SQ (Spiritual quotent). More you spiritual more the earnings.
Emotional quotent is a parameter how one responds to an emotion. If one reacts to an emotion in a higher pitch, one's EQ is low and vice-a -versa. Spirituality teaches us to remain quiet or reacting in a lower pitch to some emotion arisen. Higher the spiritual quotent,lower the reaction. Lower reaction leads to higher gain.