You didn't read the article: "The meeting with his Russian counterpart [Kirill] drew Francis deep into geopolitics, and led him to condone Russia’s foreign policy and critique the West’s in ways that have infuriated some of the Catholic church’s supporters ... The joint declaration issued after the meeting hewed close to the Kremlin’s positions on the conflicts in Syria and Ukraine."
When Sect. of State John Kerry went to Havana the week before, he met with dissidents and spoke about human rights. The pope did not. 
An April 2015 article in Il Sole 24 Ore stated the Vatican’s assets - securities, commercial real estate and bank accounts - for all its departments and offices combined “by a conservative estimate” would be around 15-17 billion euro.  With approximately 400 citizens and 800 residents, that make the Vatican the wealthiest country per capita. The US gov't doesn't claim to be "poor for the poor."
Other world leaders ACT to address "social justice."