Now, the question is ... how dedicated to bringing the civilization, or, to contrast with it, patronizing or even exploiting would the Elves/Lyrans/whatever be?
If you are superior, and have made the mistakes the "newbies" are making millenia ago and overcome them, it is easy to disregard the worldview and opinions of the young ones, for you know better, right? E.g., nurture vs. smother. If you follow the mindset of 'recieving your reward for teaching the savages', you easily come to the conclusion that you can ask a few 'favors' for giving the savages your culture - resources, labor, even military service (particularly likely, as the 2.385 year old Elf would not be too eager to risk his life, but would be more than glad to send a hundred 18-yo humans to do the job).
Thus, the question would be: how truthfully do the Elves/whathaveyou adhere to their stated ideals? They could play god, making themselves seem enigmatic and supernatural. They could play the role of an elder sibling, who helps along because he can, but lets his little bro get his own bloody nose because that's the best way he can learn. They could be like strict parents, or even dreaded overlords, terrible dark looming figures, ominous and unassailable. All in the name of civilization.
Of course, the campaigns would be different as well: discover the nature of the Elves... or a light hearted campaign where, when you fumble up, some Elves drop by and save your lame [insert body part]. A military campaign where you fight a war instead of the elves... or teach the elves to respect their children ... or topple them from their throne.