Using the game's setting as an "excuse" to engage in emergent PVP would require all players be equally aware of, and invested in, the game's setting and backstory. If there's anything I've learned from this thread, it's that those kinds of assumptions are fatally flawed from the get-go. Many players simply launch the game and play, and whatever lore/setting/whatever they're aware of comes in bits and pieces, if at all.
match their expectations.
A necessary evil, but what you said is the only way it can be done. "blaze your own trail", and even if you're not into the role/immersion stuff, it's still basically meaning "play your way". But it's a double-edged sword. That's where the modes come into play. That's it, that's the best way to avoid gankers without looking like you're favoring PvP or PvE over the other.
No, I'm not gonna mention griefers, because disliking griefers should be a given in my opinion. Anything beyond this, should be up to the players.
Unfortunately, gameplay lacks the tools that would have us some decent "emergent content" more often without it being more into the "salt mining" aspect of things. We cannot have this game player-driven like Eve does, because that would just end up killing the game faster than the death of Ugandan Knuckles. But we cannot have this game entirely driven by the Devs(as in progression/story/content of any kind).
It's a very fine line and a delicate balance that isn't frekin easy at all.
It would be nice if we, as players, had some either better or more tools that can let us make our own content more often. I'd love to see things about Elite in the form of those stories you might have heard about Eve Online. Big huge battles or heists of the century type of plays. Big-brain next level IQ ideas or tactics players did that was just epic, good or bad. Right now, what little I do see, assuming if I even discover it that is, is just boring typical staged PvP matches or those deth derby SRV races or Bucky Ball. Ehhh...they're okay I guess but they're all sportsy..I'm missing variety to actual emergent content.
FC's are a stepping stone to that, I believe. But it requires just a little more breathing room in terms of allowing players to make their own...power plays, if you will

(PMF's..let that be a hint)