Tack said:
What did that take you, like, half a second? George throughout the whole making of the film (3 years) never took himself back and said "Maybe a small augmentation's in order." and came up with such a simple, but still sensible, conclusion as your own.
I think Lucas just decided to rip off Titanic's main storyline and combine it with some of his own Buddhist sentiments without thinking about how it would all turn out in the end.