The text discusses how financial services firms are using graph technology, specifically Neo4j, to manage complex relationships between IT infrastructure, networks, and other data points. This is particularly important in industries with rapidly changing infrastructure, such as finance, where legacy systems can lead to unintended consequences when new applications are deployed. By leveraging Neo4j's ability to model complex relationships as a graph, organizations can better manage change, improve security-related access, and gain insights into their IT architecture. The text highlights the success story of Royal Bank of Scotland (RBS), which has used Neo4j-based Dart to automate deployment and improve developer productivity, resulting in a 50% increase in usage over seven months.