Tolkien’s world is rather sweet.
“It is our choices Harry that show what we truly are, far more than our abilities.”
– Albus Dumbledore
Jaichim Carridin and Ingtar Shinowa were both shades of grey. Neither truly dedicated to the shadow, nor walking in the light.
Ingtar then chose to come back to the light.
While Jaichim’s deeds abandoned the light.
We can choose to do good.
Or we can choose to do bad.
We always have that choice.
That pretty much sums up the Wheel of Time’s character philosophy…. always can be good, always can be bad.