When a character has been defeated they will forever be flagged as being defeated. No matter what the reason for the defeat, the GM will never reset it. You would need to convince Turbine to change their long-standing policy, and even then any policy change only affects those going forward and is not retroactively applied. If the title means that much to you then you will need to restart the character.
"Everyone's got one. Better to be a smart one than a dumb one." - me
"It's people like you that [I]think[/I] you know everything that give those of us that [I]do[/I] a bad name." - me
"Eat, drink, and be Merry, 'cause Pippin was a fool of a Took."