Because the systems and procedures they use in preparation and cooking are consistent. They do the same thing over and over to prepare a Big Mac. When a lead came in the same steps to process and follow-up were exactly the same each time. I know you could. To create a solid repeatable business, organization is a must.
Organization is derived from creating systems for every aspect of one's business.
Creating systems for leads, past clients, offers, listings, listing presentations, prospecting, escrows, and anything else that you do regularly in your business will provide true organization. Managing your staff. Top-producers create solid teams. They create a team of specialists at every position. The world has gone the way of specialization.