Why does Laura not fit in well with her family?

Laura feels empathy for people like the Scott family. She wants to help them and do the right thing by cancelling her party. The rest of the family is more self-absorbed and do not like to sacrifice for others.

Although she did not know the Scott family well, if at all, Laura was deeply upset by the news. She told Jose they had to call the party off. Jose told her that she was being stupid and that no one would expect them to cancel the garden party just because Mr. Scott died.