理に勝って非に落ちる

りにかってひにおちる

expression

•

to lose an argument despite being in the right, to have the right on one's side, yet succumb to another

理	logic, arrangement, reason, justice, truth
勝	victory, win, prevail, excel
非	un-, mistake, negative, injustice, non-
落	fall, drop, come down, village, hamlet