TBh wrath is just another member of teh council. The other councilors do not answer to each other, just the emperor, if teh Emp gave specific orders they would follow but he does not micro manage teh concil
also where were the rest of the council?
The wrath doesnt respond to the counsil. The Wrath is Emperor's self-appointed assasin, protector, whatnot. He is beyond the counsil in a way and he is the enforcer of Emperor's will when things go astray.
Emperor's Hands are more in common with the Dark Counsil, although they too are above it but they administer things - in direct communication with the Voice.