My edit to the Golden Youth page that he held a weapon was true to the film. In the scene where Wez and the Golden Youth are watched by the telescope after attacking Nathan, the Golden Youth is holding a pickaxe in the backseat. Here is one off site screencap.
While speculation is fine, I would say this indicates Golden Youth isn't a slave.
Fury Road employed a new actor so they created a new timeline in the comic books that put Tom Hardy in all original Mad Max movies. It also made the apocalypse start not in the 80's but in 2010's. According to the comic books: the first 3 movies play out as they were, but with Tom Hardy in them. Then they show Max's story between Thunderdome and Fury Road.
This is how they tied in Fury Road with the original series.
I would gladly do so, but you seem to already have tapped into some kind of resources that gave you a lot of behind the scenes pictures and information. Where did you find those pictures? Google search? Personal contacts?
This kind of vandalism happens all the time. Whenever a page is edited by some kid who thinks editing in juvenile bullshit is the highlight of trolling we ban them for life from wiki. The page is also now protected and can be only edited by registered and established users.