He's had the benefit of an expensive education and yet he continues to work as a waiter.

benefit 是名词，来自拉丁语 beneficium（恩惠、好处），由 bene（好）和 facere（做）组成，本义是"好处、益处"。 在句中指"从某事中获得的好处或优势"，这里特指"从昂贵教育中获得的好处"。