Noted marketing expert Regis McKenna expressed a similar viewpoint in his influential 1991 Harvard Business Review article "Marketing is Everything." McKenna argued that because marketing management encompasses all factors that influence a company's ability to deliver value to customers; it must be "all-pervasive, part of everyone's job description, from the receptionists to the Board of Directors."
This view is also consistent with the perspective of management guru Peter Drucker, who wrote: "Because the purpose of business is to create a customer, the business enterprise has two--and only these two--basic functions: marketing and innovation. Marketing and innovation produce results; all the rest are costs. Marketing is the distinguishing, unique function of the business."
But because many businesses operate with a much more limited definition of marketing, such statements can appear controversial or even ludicrous to some business executives. This is especially true in those companies where the marketing department is responsible for little more than developing sales brochures and executing advertising campaigns.
ref: wikipedia, agency management system, insurance marketing management