Final answer:
The statement is false as decentralized organizational structures are often used by larger organizations with various divisions or brands to allow for autonomy and specific strategy development.
Step-by-step explanation:
The statement that a decentralized organizational system is often used when companies do not have many different divisions, product or service lines, or brands to advertise is false. A decentralized organizational structure is more commonly applied in larger, complex organizations that have multiple products, services, or brands, which allows for greater autonomy and tailored strategies at the divisional or brand level. This contrasts with the referenced advertising example involving Miller beer, which illustrates the concept of synergistic advertising practices, where a consistent marketing message about a product is delivered across multiple platforms and venues to reinforce brand recognition and influence consumer behavior.