上梁不正下梁歪　

◎ 上梁不正下梁歪 shàngliáng bù zhèng xiàliáng wāi

[those in subordinate positions will follow the example set by their superiors;fish begins to stink at the head;when the upper beam is not straight,the lower ones will go aslant] 比喻地位或声誉高的人品行不好,下边的人也仿效而学坏