Greater Transparency: Blockchain is transparent as in everything is out in public greater transparency establishes trust within the system.
Improved Traceability- Tracking transactions becomes easier within the blockchain as those transactions are 100% true and are decentralized away from central influences making money laundering a difficult task due to the trails involved.
Increased efficiency and speed- Blockchain does have increased efficiency and speed in real life deposited cheques are put on hold while in the blockchain transactions are approved within minutes because there is no middleman (clearing house) involved so transactions are less restricted.
Reduced costs- you do not require hiring a third party to verify transactions the nodes pickup the transaction and verify things through proof of work eliminating errors and reducing costs in return.