Who said "Your loyalty means nothing if you cannot be useful."?

This quote is attributed to Joffrey Baratheon.

Your loyalty means nothing if you cannot be useful. - Joffrey Baratheon

"Your loyalty means nothing if you cannot be useful."

Joffrey Baratheon Work

"You are not the king, Lord Stark. I am."

"I should have beaten you harder when I had the chance."

"Everyone who isn't us is beneath us."

"I'll have you killed if you speak to me like that again."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."