A graph database like Neo4j can contribute to a better Enterprise Architecture by enabling quick business decisions, flexibility in adapting to changing circumstances, and improved operational performance. Graph databases bring a natural fit with interconnected domains, cutting down implementation efforts by an order of magnitude, and simplifying complex operations. They allow for flexible data modeling, growth, and adaptation, enabling developers to work with their data structures in many different situations. Additionally, graph databases offer significant performance improvements over traditional relational databases, particularly for query patterns that require hardware/software horsepower, making them a reliable choice for enterprise architectures.