There absolutely is. Its called having access to the ecosystem. The money features that exist in the current blockchain landscape are simply a better developer ecosystem, with many more features, than the non existent "Database driven", uhh money tools.
Blockchains are no longer about the singular feature of having a trustless ledger that bitcoin tried to provide. No, instead it is about a whole variety of money related features and developer ecosystems that simply do not exist outside of the crypto space.
Recreating all that exists in the crypto space, but using a database instead, sounds like a lot of wasted work when you can just use the tools that are already available.