Consider an e-commerce platform where, upon a customer placing an order, several critical actions must be performed:

1. Payment Processing: The customer's payment needs to be authorized and captured.
2. Inventory Update: The stock levels for the purchased items must be decremented.
3. Shipping Notification: The shipping department needs to be notified to prepare the order for dispatch.
4. Email Confirmation: A confirmation email needs to be sent to the customer.

Explain in detail how an event-driven architecture, specifically utilizing a message broker (such as Apache Kafka or RabbitMQ), offers significant advantages and is superior to a tightly-coupled, synchronous approach for this e-commerce order processing scenario. Your explanation should thoroughly cover the following aspects:

• Scalability
• Resilience
• Decoupling
• Fault Tolerance
• Maintainability

Provide a structured, well-reasoned answer with concrete examples where applicable, demonstrating a clear understanding of the architectural benefits.