It depends on how the balance is struck.
Also, it depends upon how the non corrupted perks work in counter play.
This is by no means an easy balancing act, not probable and barely plausible.
If fast healing is, perhaps, in a different line where the opportunity cost is the ability to not lose more than a third of health from a single strike, that may be the better balance.
Also, fast healing from demon blood slurpies could work for everyone, gain corruption and HP.
The corrupted organism just benefits more from it, or can drink the demon blood raw for the same affect.
So fast healing isn’t tied to a corruption build, but it’s inherently unnatural qualities make it corrupting and those who delve into the darkness digest it better.