I think diverging “common values” are an increasing problem for companies trying to create media for international audiences.
They definitely are, but the big moral weirdness in this episode is that the badguy isn't very bad, possibly just because the writers screwed up and made him merely make a lot of threats and never even attempt to carry them out, yet gets horrific scarring and life-changing injuries (you don't ever fully recover from a leg injury like that - also
slightly problematic that it's pretty similar to the kind of injuries that NI sectarian militias inflict on civilians who have angered them and I feel like a writer who understands NI as well as this one purports to should probably have known that) because Daredevil assaults him for essentially no reason whatsoever! He wasn't carrying the jewel, Daredevil knows that! He wasn't committing any kind of violent or public-endangering crime. He was merely getting away - something DD has let criminals do on other occasions, including ones who have actually done stuff!
Like, if he still had the gem, I could see a very basic if questionable logic to stopping him to get it back - but he didn't! If he was going to go kill someone or something, absolutely, beat the heck out of him. But "he's getting away!!!" isn't moral justification to scar and cripple a man. You're not a cop, Daredevil! Don't act like the worst kind of one!
Adding to the weirdness literally nothing in the show suggests he was handed in to the cops even.
It's like, did they edit the episode to remove him actually executing a hostage or something? Which might have given this the sort of appropriate "avenging angel" moral weight?
Although valuable jewels always have a dodgy provenance is a trope that goes all the way back to 1868. That's a lot of trope to try and ignore the weight of.
Yeah trope as old as time! At this point you kind of have to offer some kind of provenance for bigass jewels/gems because otherwise the assumption has to be that it was colonialism or criminality or both (so often hand-in-hand). And indeed it was kind of weird the show didn't offer any provenance - more typically they do.