This paper examines how expert system may negatively or positively influence ethical based decision making process in an organization. Expert system ethical characteristics are chosen; including lack of human intelligence, lack of emotions, accidental bias and lack of values. Depending on quantitative approach; and through distributing a questionnaire on (132) GM, Deputy GM, project manager and officer, it appeared that expert systems' characteristics negatively influenced on the degree of ethics within the organizational setting. According to analysis, it appears that lack of values and human intelligence were among the characteristics that hinder the ethical stream adoption within an organization leading to ethics problems and mal-functioning on the decision making process. On the other hand, lack of emotions appeared to have good impact on the ethical efforts within an organization. Researchers recommended taking extra measures of surveillance in terms of ethics for individuals who are supposed to develop and monitor expert systems.