Well, the game at least makes the effort to make the refugees a more even moral spread. Some of them are parasites and rogues, like Aradin who turns out to be a real piece of shit...
Aradin's not a refugee, just as an aside.
He was as much a refugee to the grove after Halsin was captured as the rest. He had nowhere to go to as he was stranded there, the Goblins had them corralled, and he was as much a resource drain on the druids as any tiefling. He may not be a refugee from Elturel, but in Act 1 he was effectively a refugee to the grove from BG.
