Criticizing the parable of the Good Samaritan as heart-tugging is an action that needed to be pointed out. Here is how this contributes.
Posters here are anonymous. There is no way to know who is basing their arguments in Christianity, who is the utilitarian, who is the moral relativist, or who is the troll. When Jesus is quoted, and his teaching presented, a Christian can argue that the parable does not apply. Maybe he is right, or maybe he is not. However, to argue that the teaching is just an emotional appeal that Jesus used can reveal that even that which Jesus taught must give way to something, either politics, expediency, prosperity, etc.
I have the same concern when virtue is dismissed as inconvenient. Belittling compassion and charity is a tactic that contributes nothing to the discussion, but much to my understanding of the one making the comments. I am not talking about prudence being used in how we are compassionate, but of actually dismissing compassion.
Think of how Jesus worked. There were times when he had things to do, (my time has not come, I came for the sheep of Israel, etc.) and yet he was moved by his compassion to act. This is a model for all of us, especially when it moves us out of where we are headed, politically or physically.
We do our best to discern what God wants in everything. One tool I use is the spiritual test of Galatians 5:
But the fruit of the Spirit is love, joy, peace, forbearance, kindness, goodness, faithfulness, gentleness and self-control. Against such things there is no law.
When I see a position, or action that runs counter to this, it is not one I can support. Enforcement of the law, must be done within this context to remain moral.