rightness vs conformance

rightness and conformance both are nouns.

Word	Noun	Adjective	Verb	Adverb
rightness	Yes	No	No	No
conformance	Yes	No	No	No

As nouns, conformance is a hypernym of rightness; that is, conformance is a word with a broader meaning than rightness:

rightness: conformity with some esthetic standard of correctness or propriety
conformance: correspondence in form or appearance

Other hypernyms of rightness include conformity.

rightness (noun)	conformance (noun)
according with conscience or morality	correspondence in form or appearance
conformity to fact or truth
appropriate conduct; doing the right thing
conformity with some esthetic standard of correctness or propriety