In the book BAD — Or, The Dumbing of America (1991), the literary scholar Paul Fussell said that the term Corinthian leather was chosen “because a reference book suggested that Corinthian connotes rich desirability” and so appeal to modern people who love luxury, as much as did the people of Ancient Corinth. That love of luxury of the Corinthians, Fussell noted, was “why Saint Paul selected them to receive one of his loudest moral blasts. He told them, ‘It is reported that there is fornication among you. . .’. ” Fussell concluded that whoever coined the term Corinthian leather would have to admit that the term itself “is just words” and that the leather in question “never saw Corinth at all.”
https://en.m.wikipedia.org/wiki/Corinthian_leather