#sektor's bio and what we get in story mode feels like presenting two different people to me

[cienie-isengardu]

I find it hilarious the Grandmaster probably banging Sektor's head on the wall about how loyalty is important and how Lin Kuei principals are absolute since he was baby and he didn't see Sektor might develop a tinge of independence to realize he didn't have to be told what to do once he's in a superior body. I feel like Sektor was kind of just waiting for a chance to seize power from his father and the Cyber Initiative gave him an opening and I feel his programming somewhat deteriorating was actually just Sektor's personality resurfacing above protocol and seeing that his father was no longer necessary.

I feel Sektor was honestly probably waiting for his father to die in the back of his mind prior(maybe he thought the guy would just die of old age or something) but when the Cyber Initiative was in motion and he got converted, this thought came back and eventually it just kind of weakened the loyalty protocols to where Sektor's desire to rule overrode his father's authority and he didn't feel like waiting for him to expire on his own.

The major reason why I have so hard time buying the whole human Sektor's desire to replace his father from MK9’s BIO is that the story mode, alongside other sources, doesn’t give me anything suggesting he was that ambitious or cunning to begin with and even less to think he was the designated heir. Quite the opposite, from the all named Lin Kuei characters from the same game, he is the most obedient one, the most willing to put Grandmaster’s wish over his own well-being and (at least visually wise) easily dominated by the presence of his fellow clan members. When Bi-Han is shown with Cyrax and Sektor, he takes the central place within their little group. When he is out of the picture, Cyrax openly questions Grandmaster’s vision of cyber Lin Kuei while Sektor is on the defensive, as he has no real argument to add to the discussion and Cyrax clearly doesn’t treat him as his superior, especially when Sektor confronted him about not killing Johnny Cage. 

It may be just me, but the human Sektor lacks the initiative that is characteristic for his cyber version. Similarly, for a supposed heir he feels so… subdued and withdrawn, not to mention his father sent him on a very dangerous mission in which the chance of dying was very high. Sub-Zero’s BIO from Deadly Alliance summed Kuai Liang’s choice to aid Raiden in his quest against new threat as “It was highly unusual for the Grand Master to embark on such a dangerous mission” and I think it wouldn’t be too far-stretched to assume Lin Kuei had a similar approach to the Grandmaster’s designed heir.

Sektor is a grown up man in MK9, if he was meant to replace his father at some point, I imagine he would be trained from birth for this duty. However, all the BIO says is that he had no choice about being Lin Kuei, but there is no information he was designed to be next Grandmaster. For all we know, the Grandmaster could have more children than Sektor and even if the man was considered as a potential candidate, sending him to the Mortal Kombat Tournament seems like too much risk - if he died, literal decades of proper education for the leadership would be wasted, wouldn’t it? 

My point is, I don’t think Sektor was seen by his father as the future leader of Lin Kuei - or anything more than an useful pawn, so I can understand that Grandmaster has never considered him a threat nor questioned his loyalty. Especially after automation, as C.I. Project was supposed to perfect the human warriors, not grand them better understanding of trauma and abuse they endured for Lin Kuei's benefit.

Frankly, maybe the fact that his son was so obedient and lacked initiative was the reason why he allowed Sektor to volunteer for C.I. Project - additional sources like Mortal Kombat Legends: Battle of the Realms adds a lot to that feeling of my, as Grandmaster’s explanation - complaint - about human weakness seemed to be solely directed at Sektor, the only cyborg fully presented during the speech: “The mortal body is fragile, weak. So, we enhanced them.”

Maybe you are right and Sektor waited for a chance to seize control and C.I. Project provided it - and the BIO indeed tells the truth that his “ultimate goal is to supplant his father as Grand Master of the Lin Kuei”. However I personally think it was not human Sektor’s desire for power nor personal ambitions that corrupted his programming, as he has never been shown trying to enlist Bi-Han or Cyrax for his planned coup. I think the problem lies in the fact that Grandmaster removed the “flaw” that kept Sektor in check, be it out of love or fear of his father. And once the flaw was subdued, Cyber Sektor could clearly see for the first time that his father is the danger he needed to remove to ensure his own safety, but also Cyber Lin Kuei’s independence. Because this is what you get when you remove humanity from a ruthless killer - no loyalty, no mercy. 

And yes, indeed, there is something hilariously ironic about Grandmaster's blindness to the danger of the C.I. Project and perfecting his own son that already dedicated all his life to him and the clan.