本末倒置 (běn mò dào zhì): lit. to invert root and branch ; fig. confusing cause and effect; to stress the incidental over the fundamental; to put the cart before the horse

本běn末mò倒dào置zhì

lit. to invert root and branch ; fig. confusing cause and effect; to stress the incidental over the fundamental; to put the cart before the horse

Root and branch put the wrong way round. The exact phrase for a process that has quietly become more important than whatever it was set up to produce.

The same saying in Japanese: