Trust is an important aspect. Especially at scale. If you were designing a large scale energy trading platform for example, that is trading hundreds of million or billions of dollars a day, a centralised database controlled by a third party is prone to corruption - when you get to that level of wealth, it’s basically guaranteed.

Or what about recording tax documents, or political promises, storing them on an immutable chain that’s unhackable (to the point that once it’s on chain the only way to modify it is to hack every copy on every node)

These are very large scale problems, and there’s lots of uses where databases will do just fine, but I see the key benefits as decentralised trust