The key words in your comment are "moral" and "obligation". And yes, vastly differing standards on both exist. There are plenty[1] of people who will normally

The key words in your comment are "moral" and "obligation". And yes, vastly differing standards on both exist. There are plenty[1] of people who will normally do something in a situation, but will utterly refuse to if they feel someone else is trying to morally obligate them into doing it. Wise people know to avoid using those words when they want to convince someone to do something. Appealing to morality is often a good way to polarize people. It tends to work only if the parties come from a fairly common value system. [1] Actually, I'd wager almost everyone is like this for something - that thing varying from person to person.