Many candidates dump the importance of surveys. Yet their supporters continue their support or desert them depending on survey results.
The surveys were correct with regards to Pnoy and GMA victory; they also predicted Robredo and Duterte victories
That is the only metric KRA available to the candidates and the campaign managers. Otherwise everybody will be in total darkness. (In local elections they have term for that "ïskrutinyo" A religious group has been known to thrown in a support for a candidate by knowing the iskrutinyo. Though statistically they can not influenc the election result, the accuracy of their support based on the said type of survey give them a semblance of power and influence (leadership)
What is significant though is that surveys can influence the voters preference for the winninable candidate
