Yes, the white hair wouldn't be a necessity, but given the size of the original sprite having dark hair would have made the sprite as a whole considerably darker, especially when viewed from behind. (as most people will have Cecil as the party leader for most, if not all, the game)

-to many cids, biggs, and wedges
I love this tradition, especially the biggs and wedge selling the farm part.

I guess you don't know much about paladins.
A joke, nothing more