Lord Turin isn't against others not holding themselves up to his high scruples, he just holds himself up to those scruples and will occasionally comment on others lack of characters.
Here's his view of the other characters and potential history
Damien Dulane: A bit of a rogue, but a good heart and a good sword to have by his side, he trusts the younger warrior but does occasionally treat him to lectures on the proper treatment and etiquette involving women.
Azrim Stonesplitter: Predictable and reliable is how he views the dwarven runesmith. Although he hasn't gotten to know him a great deal, he can rely on the runesmith to lay about the field with hammer and spell when things are rough.
Kerin Ke'larn: A giant of a man with the temperment of a saint usually, a man who has devoted himself to a just cause win or lose. Although once in a while he chastises him for drinking a bit too heavily, and leaning a bit too heavily on luck rather than proper planning.
Athear Caisin Liadon: Elves are always an interesting case, their years often times do not reflect the wisdom they may have accrued, and Athear is no different. He has a heart for the downtrodden and poor, which he respects, but his temperment wobbles on the extremes from calm and collected to fury, making him a bit unpredictable.
Kori Miron: He definately does not understand the nature of this little woman's powers, but he respects them nonetheless. The oddities she speaks of regarding the spirits of wood and metal mean little to him, but the effects of her magics are certain. He respects her words for they are seasoned with thought and wisdom, often deferring to her for her mastery over situations. He does wonder sometimes about all the talk of harmony and the natural order however.
Jharvym: A beast one moment and a nurturing soul the next. He can go from the tenderness of a mother taking care of her young to the rage of a mother who has had her young taken from her. Wary of this ones outbursts and rashness, Turin holds this one at bay for he hasn't the self-discipline to contain the power which seeths underneath. He feels like a father watching over a troubled child more often than not when Jharvym is around, a very explosive and dangerous troubled child at that.