On being educated and being a senator

Education I firmly believe should make a person far more better not only as an individual but more so as a member of a group, or a profession, or a nation. Finishing a course of study, gaining a university degree from a university should imbued one with the mark of a humane, civilized and sensible person. A degree in economics for example should not be a reason for one to engage in business whose sole object is to gain as much profit without thinking of the welfare of those involved in the production of the goods. Nor a degree in law should be used to take advantage of the peoples' ignorance about their rights. However, this is not always the case. Take the case of the current situations involving President Gloria Arroyo and members of her family and cabinet with the supposedly major project of the government: National Broadband Network. Under oath, the people so far invited by the Senate to shed light into this anomalous, graft tainted project, gave statements showing that the President prior to the signing of a contract with the government of China, had been told that bribes were being offered. For someone who claimed to be an economist, having studied in one of the prestigious universities in America, who profess to all the world that she is against corruption, why did she sign the contract?
http://opinion.inquirer.net/inquireropinion/letterstotheeditor/view/20080305-123028/Unschooled-but-educated