I work in the embedded storage industry, and the worst application is an app that runs fine but writes corrupted data. You can’t trust the app any longer and is a fatal blow to your companies reputation.
Customers will be RUNNING AWAY from your app and switching to other vendors. What’s more worse that data corruption bugs are downplayed so much (or not advertised at all) that a customer really doesn’t know if a software update contains a key fix.
So data corruption avoidance is priority #1.
This is why industrial-grade filesystems like ZFS include CRCs along with files because you really can’t trust the underlying storage hardware to do the right thing.