Executives morality and ethics became major research topics following recent business scandals, but the research missed a major explanation of executives immorality: career advancement by "jumping" between firms that causes ignorance of job-pertinent tacit local knowledge, tempting "jumpers" to covertly conceal this ignorance. Generating distrust and ignorance cycles and mismanagement, this choice bars performance-based career advancement and encourages immoral careerism, advancing by immoral subterfuges. Such careerism is a known managerial malady, but explaining its emergence proved...