That the act of interpretation is inextricable from the social context of the interpreter is never more evident than when Jesus's sayings to and about the rich are expounded in churches in the West. When those who have are implored to give what they have to those who have not, we take this to mean that those who have are to offer up their possessions to Christ and proclaim that everything they have belongs to Christ. To expect anything else of those who have would be unreasonable, even immoral. After all, if those who have give everything away then what's left for them? In the zero-sum game of life those who have see no reason to switch places with those who have not.
But Luke will not let us get away with our cunning interpretive strategies. Notice the parallel between Luke 18:22 and Acts 4:34-5:
Luke 18.22: "Sell everything that you own and distribute it to the poor"
Acts 4.34-5 [those who owned land or houses] sold [them] ... [and the proceeds] were distributed to each according to his need.
Selling and distributing among the needy was not a unique, one-off mandate given to the rich young ruler. Luke presents this solidarity with the poor as a constituent of the early church. Furthermore, the early church here acts as both the faithful interpreter of Luke's story of the rich young ruler and as the judge over our unfaithful interpretations.