4.bankers are appalled at the economic incompetence of some ministers.
银行家因一些部长在经济问题上的无能而感到震惊。
5.Incompetence outraged him.See Synonyms at offend
他自己的无能深感愤怒参见 offend
6.At last, it was buffeted by the ruin of Prussian monarchism, then attached itself to the right-wing conservative group, which further led to its incompetence to counteract Nazi's rule.