I am unsure if theres really anything unsaid that i want to say about this topic.
I think the only thing missing is a simple: why is this a attack on high level players? I understand that your attempting to bring up issues of a strong person picking on a weak person, but the reverse is true as well. People have on occasion accused me, baselessly of commiting crimes with no evidence besides a scent. Regardless of the justification i had for laying said scent, they were still quite convinced i was the criminal. And since many of those scents could summon me and kill me [I'm sure even a average-esc player could kill me by summoning me and using instance attacks a bunch], they could certainly cause me far more potential harm, as i have much more to lose.
I don't think i've ever gone around saying "i am god, i decide what is right, muahhahahaha", nor have i seen a lot of people say things like that. People generally just state some evidence, then eiether attack or not attack the person. I think they're seems to be a implication that people are overly confident in their facts, and this may or may not be true, however i have serious doubts about how self-righteous the massive amount of people you are accusing truely are.
Personally, i have killed people with little other then a person accusing another person, and seeing the scents on the ground, if they led to that person i concidered it confirmed and at best, confronted them about it, or at worse [where i felt decently confident] just killed them.
I didn't do it because i was 100% sure of my self, nor because i saw myself as some omni-potent justice wielding god as you seem to be implying, I just did it because it was practical. P-r-a-c-t-i-c-a-l. As in, if i hostile someone to prevent them from leaving they generally take off like the flash, before i can even talk to them. Half-the-time people nowadays log off the second they see me out of some fear i'm there to kill them, regardless of whether i am or not. Am i confident that if someone gains a bit of distance they can escape quite easily? Yes, its very difficult to chase someone down whos running and has a few screens lead. The truth is, i simply killed a lot of the people i did, because it was impractical or time-consuming to do otherwise [and still punish the criminal].
Btw: i have in reality, killed less then 10 people since starting this game.
Is it about justice? hardly, its about trying to keep people from commiting crimes in the most practical way.