mogul vs man of affairs

mogul and man of affairs both are nouns.

Word	Noun	Adjective	Verb	Adverb
mogul	Yes	No	No	No
man of affairs	Yes	No	No	No

As nouns, man of affairs is a hypernym of mogul; that is, man of affairs is a word with a broader meaning than mogul:

mogul: a very wealthy or powerful businessman
man of affairs: a person engaged in commercial or industrial business (especially an owner or executive)

Other hypernyms of mogul include businessman.

mogul (noun)	man of affairs (noun)
a very wealthy or powerful businessman	a person engaged in commercial or industrial business (especially an owner or executive)
a bump on a ski slope