righteous vs worthy

righteous is not a noun while worthy is a noun.

Word	Noun	Adjective	Verb	Adverb
righteous	No	Yes	No	No
worthy	Yes	Yes	No	No

righteous (noun)	worthy (noun)
	an important, honorable person (word is often used humorously)

righteous (adjective)	worthy (adjective)
characterized by or proceeding from accepted standards of morality or justice	having worth or merit or value; being honorable or admirable
morally justified	worthy of being chosen especially as a spouse
	having qualities or abilities that merit recognition in some way