What lily describes as the Good Samaritan's actions are what I would expect of any decent human being. I'm sure many gransnetters have helped people unknown to them just our of human compassion. At the time the story was written it would not have been expected because tribalism between the Jews and the Gentiles was the order of the day. The Good Samaritan was unusual.
I'm not sure about live and let live. On the surface it seems innocent enough, but I'm certainly not happy to let people who carry out female genital mutilation or other cruel, unnecessary practices, live as they are doing without fighting (in terms of verbal persuasion, education, etc) for changes. There are lots of other aspects of how other people live, or are forced to live, that I am not happy to simply 'let' without trying to improve things somehow. I'm sure many people feel like this, or else why would there be so many charities trying to make a positive difference to people's lives?
You may have a point, mal, but I tend to think of anything sanctimonious as drivel by definition. It's not drivel to feel sorry for someone, nor is it sanctimonious, but the way it was talked about could be. Admittedly, it could be hard to say the same thing as the bit I was talking about without seeming sanctimonious. I'd take some persuading to feel sorry for someone who is cruel or who persecutes others. It certainly wouldn't come naturally.