All Klingons are honourable, except that none are(and most of the main ones we see are deceitful, backstair dealing, stab you in the back snakes).....except Worf and even then he was about as annoying as Ned Stark and at least Stark had the decency to pay for his obsession with his own sense of loyalty - God what I would have given to see Worf executed - HATED that whiny prick!!!
They were presented en masse as hulking biker thugs who enjoyed head-butting and brawling.
Honour? Fuck off.