For my write-up today on the Anchor Bible commentary on The Wisdom of Ben Sira,
 by Patrick Skehan (translator) and Alexander Di Lella (commentator), I 
will focus on what Di Lella says about Greek attitudes regarding the 
poor.
Ben Sira promotes generosity towards the poor in Ben Sira 
3:30-4:10.  On page 168, Dil Lella states regarding Greek attitudes 
toward to the poor:
"A final observation with regard to the 
ethical sensitivity toward the disadvantaged expressed in 3:30-4:10: the
 Greeks, despite their unquestioned accomplishments in philosophy, 
ethics, and law, had such a low regard for the poor that according to 
Plato (The Laws, ii) a certain Athenian actually proposed that each state enact a law banishing the poor..."
That Athenian brought to my mind what critics of Rudy Giuliani say about his treatment of the homeless----see here and here.
Were the Greeks anti-poor?  I checked out The Oxford Classical Dictionary, and what I read in the article on "Euergetism" coincided with what Peter Brown says in this article:
 that there was a high regard for generosity in Greek thought, but 
philanthropy was believed to be for the society-at-large, not for the 
poor, specifically.  Granted, the poor may have benefited from the 
philanthropy, but they were not the ones who were in the wealthy giver's
 mind when he was making his donation.