I'm assuming that you're using the fel as an analogy, so I won't get into that.
On topic, if it's just willpower versus convenience, there's a morally superior choice. There has to be consequences, or the narrative is just that High Elves are Blood Elves who were stronger/smarter/etc. That's not going to play well with most people, not just because it makes the most popular Horde race look bad, but also because it doesn't really make for an interesting story. I mean, it's not very thought provoking if the story is that the better elf makes the better choice.