The poor can't always use social justice

The policy of social justice is not intended to countenance wrongdoing simply because it is committed by the underprivileged. At best it may mitigate the penalty but it certainly will not condone the offense.

Compassion for the poor is an imperative of every humane society but only when the recipient is not a rascal claiming an undeserved privilege. Social justice cannot be permitted to be a refuge of scoundrels any more than can equity be an impediment to the punishment of the guilty. Those who invoke social justice may do so only if their hands are clean and their motives, blameless and not simply because they happen to be poor.

This great policy [social justice] of our Constitution is not meant for the protection of those who have proved they are not worthy of it, like the workers who have tainted the cause of labor with the blemishes of their own character. [Tirazona vs. Philippine EDS Techno-Service Inc., G.R. No. 169712 (2009)]