>>96411450
GW and BL didn't want the traitor legion to be bad-bad, so they made them morally gray (See: everyone in the story is a blind retard + all according to gaykaku).

How did they do it with Angron? They made him a poor slave :(
Who had friends he wanted to die with :'(
And the emperor took him away so he couldn't die with his brothers (and sisters, girl power!) :'C
So Angron is actually just sad and misunderstood and he didn't want the nails, the bad evil slavers (who are allowed to be fully evil) put it in him (and it cannot be removed because fuck you)

Be sad for Angron :''''CCCCCC