The incomplete parable of the Good Samaritan

While reflecting on the Parable of the Sower and the seed last night, remembered the goodnight that I gave to the students of Philosophy at Kondadaba in the year 2000. Distinctly remember sharing with them my mixed feelings about the perhaps the greatest of all parables: the Parable of the Good Samaritan. Somehow, I feel that it is an incomplete parable. Jesus merely spoke of the good Samaritan as a 'do-good' guy but I thought what use is that one act of charity. Surely it would mean a lot to the one Jew whom he attended to but did the Samaritan do anything worthwhile to ensure that another traveller does not meet with the same fate? Or would he be there for all those hapless victims? The more I think of it the more muddled it gets. May be he ought to have done something about the bandits. But what? Would he then still be called the 'good Samaritan'? Or perhaps he ought to convert the bandits - after all they are the cause of the whole mess down the valley. So you tackle the cause and you no more have innocent people falling prey to their looting. Perhaps good to think of this parable at different tangents!