bean counter vs controller

bean counter and controller both are nouns.

Word	Noun	Adjective	Verb	Adverb
bean counter	Yes	No	No	No
controller	Yes	No	No	No

As nouns, controller is a hypernym of bean counter; that is, controller is a word with a broader meaning than bean counter:

bean counter: an accountant or bureaucrat who is believed to place undue emphasis on the control of expenditures
controller: someone who maintains and audits business accounts

Other hypernyms of bean counter include accountant, comptroller, administrative official, bureaucrat.

bean counter (noun)	controller (noun)
an accountant or bureaucrat who is believed to place undue emphasis on the control of expenditures	a mechanism that controls the operation of a machine
	someone who maintains and audits business accounts
	a person who directs and restrains