moral force vs incentive

moral force and incentive both are nouns.

Word	Noun	Adjective	Verb	Adverb
moral force	Yes	No	No	No
incentive	Yes	No	No	No

As nouns, incentive is a hypernym of moral force; that is, incentive is a word with a broader meaning than moral force:

Other hypernyms of moral force include inducement, motivator.

moral force (noun)	incentive (noun)
an efficient incentive	a positive motivational influence
	an additional payment (or other remuneration) to employees as a means of increasing output