ˌemperor’s new ˈclothes, the BrE AmE
this expression is often used to describe a situation in which people are afraid to criticize something because everyone else seems to think it is good or important. It is the title of a ↑ fairy tale by Hans Christian Andersen about an ↑ emperor who pays a lot of money for some new magic clothes which can only be seen by wise people. The clothes do not really exist, but the emperor does not admit he cannot see them, because he does not want to seem stupid.