What's your definition of poor, financially incapable??
What role do you expect the play??
Every class of personality is actually important in a society, the financially capable and incapable have their parts to play but that doesn't make them less human than the other.
Ops have failed to outline the specific role he is refering to because in economy there are various aspect and segments, the poor may not be able to support the budget financially since their lack the cash liquidity to do so, but then also there are roles that each individual could players in the economy such as man power supply and the rest.
So bith the poor and the rich have a role to play and fheir role are widely separated in other to make room for peaceful coexistence.