Imagine one day we wake up after the usual yawn-inducing sham elections in Russia and Putin won as usual but a large chunk of the country, probably a plurality of it, is utterly convinced that it was completely fake and that Navalny won.
Without anybody using violence to do it.
Those who think there is nothing to be done but to counter authoritarianism without another authoritarian, or violence, or just to give up and suffer it - might be inspired by this.
I'm not the NNC but that seems like a "meaningful accomplishment".
You could ask: "Sure, allright, the populace was convinced that election was a sham. But... Maduro is still in power so she still hasn't done much". Let me flip it around, perhaps: What did Gandi ever actually accomplish? Isn't it the same thing: Show that violence is not a necessary element, get the people to reframe the situation a bit?
Can we prove Gandi sped up the UK's exit? Even if we can, one of those holocaust level holy heck humanity can get extremely dark moments in history that is rarely talked about is the absolute terror that occurred during the split of the Raj into India and Pakistan.
My point is: Judging the eligibility of a person for a peace prize on the basis of 'measurable meaningful accomplishment' is not how it works and probably shouldn't be how it works. It's either a bullshit prize (kissinger got one...) or it is like making a statue of somebody: It takes a person, turns them into a principle or ideal. Even though humans are much more complex than that.
The notion of "one is capable of being in opposition in an autocratic regime and get stuff done without resorting to violence" got a peace prize, but as per the dictat of Alfred Nobel, only people can get it, so, they stuck the label "Maria Corina Machado" on it. And that wasn't a bad labelling: She really did accomplish 'meaningfully' that goal, at least, I'd gather according to most folks' definition of the word 'capable'.
Exactly this happened in Belarus in 2020. Government wasn't shy of using its power though, many people got long prison sentences, many people had to run, nothing changed wrt to dictatorship. I don't see anything inspiring in this story honestly.