Originally posted by Sinious
Dark Council members were hyped af in the Empire. Scourge hasn't even properly spent time on Dromund Kaas and was quite ignorant on such matters compared to some of the people he encountered on the planet. So his opinion is actually not that important. Also, you're making fun of the idea that a Sith can be humble but in this case Scourge is actually a very cautious and logical character and doesn't wank his talents like some other dark siders. In many cases, he admits inferiority in his thoughts or that he isn't above Meetra etc. I'm not surprised he was skeptical about blindly following orders when a manipulative DC member asked him to kill another DC member, especially since the DC member who was asking him of this was so clearly superior to Scourge. Your original point was that Scourge before ritual was afraid of taking on a DC member and in the context of your post that was a reason for him to be unimpressive. There are other factors that actually prove that he cannot take on high and arguably mid level DC members instead of the fact that he hesitated to take on Xedrix when he first heard of the objective in circumstances that would make most more hesitant than usual in the first place.
If Scourge was such an uber badass, why was he so unremarkable and insignificant that he never got a good glimpse of the capabilities of the dark council?
And Scourge wasn't wrong - against a healthy and able DC member, he would have likely been destroyed. See: his battle with Nyriss.
And your Kenobi / Scourge comparison is still not really a healthy one. There are different characters that explore their potentials in different timelines. Especially dark siders tend to grow a lot more in their old ages than lightsiders in most cases.
Actually the opposite is true - the dark side is, as Yoda puts it, the quicker route to power.
Especially people like Scourge who went through an immortalizing ritual did not suffer from old age unlike characters like Kenobi. If there was still untouched potential left in Scourge to an extent where the likes of Revan would notice and praise, then I'm willing to believe that he still continued to naturally grow in power after for a long time. The critical part here is that the ritual didn't just amp him (in fact the novel never even explicitly mentions Scourge getting a concrete power boost in anyway), its that the ritual allowed him to reach that potential without any setbacks of old age but with endless practice (1100 Jedi/sith killstreak) + like x10 more time to actualize and perfect it than average force users.
So? I already said myself that TOR Scourge (who is explicitly being amped by Vitiate) is probably on Kenobi's level, or at least possibly so. That doesn't mean his natural talent is comparable.