CINDERELLA

[noun] [C] - someone or something that is given little attention or care, esp. less than they deserveMental health has long been considered the Cinderella of the health service.Many Russians felt that their republic had been the Soviet Union's Cinderella, better endowed than any other but forced to give way to them all.The original Cinderella was a girl in a traditional story who was badly treated by her family.