Rajya Sabha MP Kapil Sibal on Friday took a swipe at Prime Minister Narendra Modi over his remarks on the BJP's commitment to social justice, claiming that under this government the "rich get richer and the poor get poorer".Addressing BJP members at the party's 44th foundation day, Modi on Thursday cited the free ration scheme, health insurance and other welfare measures, to assert that social justice was an article of faith for the BJP while other parties used the plank to advance the interest of particular families without helping society.