Sure, but when is it a failure of the system and when is it just people abusing their power?
Probably a combination of both. Section 31 exists because it doesn't trust the externalize processes of negotiation, diplomacy, believing that they must do this. Vigilantes exist because they don't trust or believe in the system. The reasonable approach would be work to change the system. The dramatic idea is to explore it with things like Batman, Section 31, Seven Samurai, etc. It's a storytelling archetype for a reason; it appeals in some dramatic way to us.
Now, because I like Daredevil or Batman does that mean I go out and engage in the same actions? If the answer is no, then I fail to see the harm in a show about Section 31 exploring inside a space that Trek hints at, and explores occasionally, but not with much real depth. But, Georgiou is set up in a unique way to explore this darker facet of humanity, closer a bit to TOS but not exact.
In TOS, the Mirror universe humans are interestingly described at the end of the episode: SPOCK: Indeed, gentlemen. May I point out that I had an opportunity to observe your counterparts here quite closely. They were brutal, savage, unprincipled, uncivilised, treacherous, In every way, splendid examples of homo sapiens, the very flower of humanity. I found them quite refreshing.
So you have this idea that Mirror Humans are not so different than Prime humans, but we see the relationships and how they are forged in cooperation rather than competition. Now, you have a human who has come to the Prime universe in some shape, built on cooperation, and a opportunity to learn and grow and evolve as a human while still dealing with the environmental forces that shaped her. And that's the drama I want to see because it isn't about justification but about drama, and how humans can actually try to become better despite challenges.