Questions of justice and fairness are only relevant between those with an equal power to enforce them.
Do not rock the boat
Loyalty to your boss is expected to your organisation required
The reputation of the organisation must be protected
It is not the done thing to criticise a fellow officer to members.
This rule does not apply to private conversations.
Gossip is useful, gossiping isn't gossiping if it is putting your boss in the picture.
Tell the boss what they want to here let some one else tell the boss what they don't want to hear.
Always present the service/department/organisation in the best possible light.
Of course their is a blame culture so cover your back .
People like and promote people who are like them, be like them.
Blair McPherson former director, author and blogger www.blairmcpherson.co.uk