socio-economic class vs people

socio-economic class and people both are nouns.

Word	Noun	Adjective	Verb	Adverb
socio-economic class	Yes	No	No	No
people	Yes	No	Yes	No

As nouns, people is a hypernym of socio-economic class; that is, people is a word with a broader meaning than socio-economic class:

socio-economic class: people having the same social, economic, or educational status
people: (plural) any group of human beings (men or women or children) collectively

socio-economic class (noun)	people (noun)
people having the same social, economic, or educational status	(plural) any group of human beings (men or women or children) collectively
	the body of citizens of a state or country
	members of a family line
	the common people generally

socio-economic class (verb)	people (verb)
	fill with people
	furnish with people