If we assume a world where ransomware is continually existent and all your data is ransomed at anytime, we'd have a world designed to work around that.
We'd either end up with a Discworld "Ransomware Guild" that you pay "insurance" to and they murdicate anyone who dares do extracurricular data ransoming, or you'd have systems build on end-to-end encryption where the data is worthless.
I think you may have re-invented email reputation.