Because they come from a business background, executives tend to have little to no understanding of their company's product or service — whether it's frozen potatoes or deep tissue massages. Why, th

Because they come from a business background, executives tend to have little to no understanding of their company's product or service — whether it's frozen potatoes or deep tissue massages. Why, therefore, would an executive ever bother to invest in his company's product or service when he can invest in sales, marketing, account management, or something else that has meaning in his world? What is most clearly the central idea of the paragraph?