We continue to be counselled here on our attitude and actions toward the poor. God is truly concerned that we are gracious to the poor, for He Himself was gracious to us when we were poorer than any level of poverty could ever reach. He granted us His very riches in Christ through the gospel - therefore we too should respond with grace and with mercy to those who have little or nothing around us.
This proverb speaks of those who "despise" their neighbor. The one who despises his neighbor looks at his poverty and hates it. He sees no need for mercy or for kindness. He will most likely point out all the reasons why this one is in poverty - and say that is the reason why he should not do anything for the poor. While it is true that we need to give to the poor in a way that does not enable them to continue in sin, there is a need for them to receive genuine love and mercy from those who can help them.
Some despise their poor neighbor because their poverty calls for generosity - and that is hard to have when one is in bondage to a worldview where they are all that matters. They want much for themselves and therefore to give to another is an unwanted trouble. Therefore they despise the poor - and refuse to be gracious and give to their neighbor in need. We are told that such an attitude is sinful. It misses the mark that God has made for us to hit.
It is truly important to see the nature and the actions of God to see why this is such a sinful, wicked attitude. When we refuse to give, we are very much unlike God. He gives to the poor and to the unfortunate. As was said at the beginning of this post, God gave His Son for the poorest of all creatures - sinful man. That should help us understand His basic nature - that He is gracious and giving. We, therefore, should be gracious and giving as well. To be and to do anything else is just sinful.