Those same sticky ethical questions seem to be why Black & White's plot exists, especially Lord N. I haven't even played Gen 5 yet, and I know so much because N made such an impact on the fan community. (just to clarify, I'm in my 30s and only now I'm getting into Pokemon at Gen 3, partly thanks to a same-age friend who's been into it from the beginning, partly thanks to Gardevoir, and partly because the community makes such impactful characters of Pokemon; I will note that I'm not a complete newb, though- I've at least watched portions of the anime and a number of the movies over the years when they were on TV during and after high school)
One of the first stories I read had N, with Zekrom and Reshiram's help, create a safe haven for both humans and Pokemon who desire peace to live in harmony together, isolated from the rest of the world- and that was just the setup and history for the real story involving characters who were among the few that were willing to leave the safe haven with N on missions to find more like-minded people, both human and Pokemon. (said story's getting a rewrite by the writer since he seems to be embarrassed by the quality after taking writing courses in college; I support his bravery and wished him Arceus-speed, and hope I'll not have to wait too long to see its new form- he got me really invested in the characters despite the supposed 'cringe-worthy' quality)
I read the crap out of that story (which is technically an adventure/romance), same as when I archive-binged this. Redemption stories like Gengar's have a certain appeal for me. I think it's just the idea, not anything I want to identify with; I don't think I've had enough bad actions with bad intent to need redemption. The other story introduced a side-character who used to be Team Galactic for a redemption side-plot, and he's one of my favorite characters; he kind of reminds me of a mix of Spock (both Nimoy and Quinto) and reformed Sylar (another Quinto role!) in terms of personality- very much a scientific and analytical mind but there's no doubt there's emotion hiding and peeking out through the mask of logic, with that desire to do good in the hopes of balancing out the evils of his past like Sylar (but knowing/believing that said evils are beyond redemption - I mean in Sylar's case he DID kill people - won't stop him from at least doing what he knows is right).