It'd definitely open up a whole slew of social perspectives and discussions.
Elven culture was once so heavy in magic before it was swallowed up by the bigger human mage culture (Tevinter) then demonized by the bigger anti-mage human culture (Andrastianism), so why turn against your heritage? The Chantry oppresses and exploits mages in Circles just as it oppresses and exploits elves in alienages, so why serve the Chantry that keeps your people in working poverty? The elves as a culture are more community-oriented than humans, so why break from your people to work for/be more like humans?
Which can open the discussion that elven culture =/= elven individual, more elves can live better if they take more prestigious "human jobs," elves doing well in human positions can slowly help to change the way humans see elves (though I think this argument is BS because it places the burden of change on the minority's shoulders when the majority have power to make change... but it's a perspective many people have in and out of the games), etc.
Then that can open up the discussion of why does an elf have to separate from the elven community/culture to be socially and financially well off? Why does "being elven" and being socially and financially well-off have to be mutually exclusive? Why do elves have to live and act like humans for humans to see them as worthwhile?
I would love some of these issues to be discussed in game. I doubt BioWare would cover it with a Templar elf (who'll probably be just like Fenris and sneer at his/her people), but it would be nice.