Umm, I didn't see a whole lot of Jedi like that in the Movies or EU either. Maybe that's the theoretical answer, but not the reality of how most Jedi actually were. Maybe Qui-gon.
Many Jedi have helped others in need. It can be as simple as encouraging words, or go so far sacrificial acts.
These acts aren't well known, but they do occur. They are quite commonplace (in times of peace when the Jedi aren't acting as defenders), actually.