money handler vs worker

money handler and worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
money handler	Yes	No	No	No
worker	Yes	No	No	No

As nouns, worker is a hypernym of money handler; that is, worker is a word with a broader meaning than money handler:

Other hypernyms of money handler include actor, doer.

money handler (noun)	worker (noun)
a person who receives or invests or pays out money	sterile member of a colony of social insects that forages for food and cares for the larvae
	a person who works at a specific occupation
	a member of the working class (not necessarily employed)
	a person who acts and gets things done