Do you know what takes even less work/financial investment than role quests that nobody wants to do? Not doing job/role quests at all.

If a storywriter wants to take a bit of time to expand out a bit of job lore, by all means, encourage them to do so on a case by case basis. But please don't do it for the sake of doing it. I really, really don't want to explore why Rogadyne McMuscles is interested in absorbing tankbusters for his team to protect them from the auto-positioning boss. You're wasting your money and wasting my time. Ten to twenty levels of baseline job introduction/lore is just fine. If people like the lore, expand on it in an optional capacity.