"inculcated industry" (or "inculcated industry and frugality")
- inculcate: to instill an idea or principle in someone's mind through continual admonition and education.
- industry: industriousness. diligence. "energetic, devoted activity at any work or task"(by Dictionary.com).
So "inculcated industry and frugality" means the attitude of being diligent at one's work and striving to preserve rather than waste resources, which was attained through deliberate education.
"inculcated" emphasizes that people can acquire such an attitude through education, as opposed to being born with such a trait.