Why would you use a distributed system?

Why would one choose to utilize a distributed system in their operations? Could you elaborate on the advantages and potential benefits it offers, especially in the realm of cryptocurrency and finance? Are there specific scenarios where a distributed system would be more advantageous compared to a traditional, centralized approach? I'm curious to understand the driving factors behind adopting such a system and how it can contribute to enhancing security, efficiency, and scalability in the cryptocurrency and financial landscape.