>I'm not sure what kind of poverty you've seen, but the kinds I'm familiar with both personally and from studies place far more emphasis on maintaining relationships and social capital because that's what they have. Lending or pooling money is not only common, but often without the expectation of direct repayment.
Fair, in that the experience I'm describing is among the poor whites of the US; a notoriously atomic and individualistic group. This probably does not map to other cultures as neatly.