"No Gumption" happens during the Great Depression, Russell Baker is eight years old, he and his mother has scarce resources and face many issue due to the time, for this reason her mother wants his to start a career in business, she gets a job selling newspaper for him, however, baker does not want to do it, her actions are influenced for the difficult times they are passing by.
In colloquial English 'them" would be acceptable
In formal English 'they' is used accompanied by the corresponding auxilliary verb
So, you could also say Is everyone who works in this store as helpful as they are ?
Adjective? I can't tell which word is bolded but you commented beautiful it would also help if you gave the answer choices.