After the Napoles scam, there was a decision to expunge the most egregious components of the congressional pork barrel system. So they tweaked the pork system, called the kalakaran in the vernacular, which was rearranged in this manner. Some can definitely propose more pork projects than others. Like the case of the 24 members of the opposition and the Makabayan bloc, who were etsa pwera (excluded) from the recent pork barrel allocation. Still, the pork system is essentially corrupt, though the impunity of the days before Napoles is gone for good.
Source: Manila Times December 26, 2017 16:41 UTC