Climber, a Clone commando, refused to kill Roan Shryne and his fellow Jedi.The Republic Commando Team showed a rather large amount of disatisfaction when forced to leave Sev behind, despite their training.
Believe it or not, I remembered about Climber, however, the bell was about to ring, and I had no time to say anything else. That was slightly different - he had formed a friendship with Roan, so he hesitated to kill him, and decided not to until he got info on why. At any rate, that was 2 Clones out of a million. If two Durge Clones out of a million, or even ten clones, went rogue, it would be no big deal.
Also, maintaining Clones of Durge may have been just as expensive. They'd require larger armor and vehicles, and would probably require a lot more food and training, considering their incredible natural strength and speed.
Armor? Um... Durge doesn't need armor, does he? it's not like he can die. Latger vehicles? Maybe a little, but Durge seemed to ride the same speeder bikes as the Lancer Droids did just fine. More training? Why? Food yes, but with no armor, it makes up for at least some of the cost. They could make half as many units and still fair way better than they did with Jango Clones, and it would save them money.
It occurs in Battlefront 2. Boba is an exact clone of Jango, so I doubt he is more ruthless. Jango kills his own friend Zam Wessel and was raised on Concord Dawn where his entire family was killed.
That's like saying the Clone Troopers are equally as ruthless as Boba, because they are his clones. Events can shape one's live. Did Jango actually see his family killed? And he had to kill Zam, he had no choice, she was going to betray him. And in
The Fight to Survive, after Zam dies, he seems sad, and Bona even thinks at one point that he is crying. At any rate, killing Zam as an adult who has killed many people, and seeing your papa die as a child is a lot different, plus Jango and Zam weren't exactly close friends. They had actually worked against each other in the past.