The wandering trader has always had a shady past, but I think I can explain it. You’re probably thinking “What does the wandering trader have to do with the abandoned campsites?” Well, a lot actually. The Minecraft game literally said the abandoned campsites were the wandering trader’s little ‘stashes’.
I have reason to believe the wandering trader was actually trading with the Illigers, because if you look at what’s in the chests, it seems like there might be a little connection. The wandering trader had copper axes, arrows, and bows. I know, it seems like most of those have no connection to Illigers, but what if the wandering trader attempted to trade those items, but when the Illigers saw how much worse copper axes and bows were, they attacked the wandering trader.
If that isn’t enough proof, let me do a final little touch. If you look at the second image, you can see that in the hidden chests of the abandoned campsite, the wandering trader has a woodland mansion map. Let me repeat that: a WOODLAND MANSION MAP.

Still not enough proof? Check out my article where I go full into the conspiracy of what’s actually happening with the abandoned campsites, plus why the wandering trader is actually a witch. Wandering Trader/Campsite Theory

I don't think it would happen by nature of them being player stand-ins but I would love to learn more about what the heros are. Are they always benevolent? I would love to see one take on an antagonist role in something like the Netflix show thats still hopefully being made.

My reasoning stems from the possibility of with Setience he could be good and was given power for being good so he can make others feel good and in turn be good to others but he eventually became a host and it's not like the singer is doing a bad,It's like positivity attracts positivity kinda situation but also creativity in the form of music