The effect of SI, extends to the satisfaction that individuals feel with their jobs and, in general terms, how they respond to change and commitment to the organization the key competencies are leadership, self-consciousness, empathy, and sense of humor or stress management. Leadership is probably the competency that has most been studied in relation to success, and with a clear link to SI. Numerous studies have shown that the SI factors may predispose individuals to becoming transformational leaders and motivating their followers. True workers are those who can best recognize and manage their own relations and those of others, which implies greater levels of success. Highlights SI as the most important factor for better performance in all position jobs, while suggests that there is a relationship between general managers, SI and their performance, measured by the score on the evaluation of the administrator’s performance, the output of benefits under his/her control and customer satisfaction. However, this positive relationship is not limited exclusively to top management. The employees who are «smart» with their emotions are usually more efficient and effective in their interactions with their work environments and with their coworkers.