Ok so it seems like the bulk of minecraft technical skills can be sorted into five Big Categories, which can then be applied for worldbuilding purposes:
Survivalism: this is stuff like knowing how to find and get resources, how to craft items, what all the mobs are and how to fight them, etc. Just a good working knowledge of the core mechanics of survival minecraft, including basic resource farms. The extreme of this is hardcore players like Philza.
Building: if you can design and build a beautiful base without following a step-by-step tutorial, this one is for you. This is also where most major endurance projects go, like draining a monument, terraforming a mountain, etc. This is Grian, along with many other hermits.
Redstone: basically binary coding, scaled up to however high your expertise can take you. Minecraft is turing complete, which makes redstoning a complete skill in itself. IMO most automated farms go here as well even if they use minimal redstone, along with structures like world eaters and lag machines because they rely so heavily on technical mechanics. Think MumboJumbo.
PvP: the ability to fight and win against other players, rather than just against mobs. Includes physical skills like good aim and high click speed. Also includes understanding the fine details of specialized battle mechanics like armor, shields, potions, healing items, and end crystals. Technoblade is a good example of this.
Movement: the ability to get from one place to another quickly, using whatever means possible. Includes parkour, elytra use, water bucket clutches, speedbridging, etc. I would also argue it includes speedrunning techniques like making nether portals with a bucket and triangulating end fortresses. Dream is this.
Anyway, if we're layering the usual minecraft low fantasy/cold war military/dystopian aesthetic over this, these categories could translate to professions and lifestyles such as:
Survivalism -> terrain guides/explorers, artisans, farmers, naturalists, homesteaders. People who contribute to their community's ability to be self sufficient, likely drawn to small settlements or solitary nomadic lifestyles.
Building -> architects, landscapers, infrastructure designers, construction workers. Probably involved in largescale projects with varying degrees of authority, most likely found working in a major city or for a wealthy patron.
Redstone -> research scientists, engineers of various subspecialties, mechanics, industry specialists. Might work alone but more likely on teams within larger operations. May or may not have scruples about how their work gets used.
PvP -> soldiers, mercenaries, gladiators, bodyguards, strategists. Societal role will depend on career path, ranging from captive in a fighting arena to high-ranking general. Relationships with others will vary accordingly.
Movement -> scouts, messengers/couriers, assassins, spies, bounty hunters. Very likely to operate alone or on small teams because other people tend to slow them down. Has potential to overlap heavily with PvP or survival lifestyles.