An expression used of those who, though they may be guilty of wrongdoing, think themselves the victim of a more serious wrong. From William Shakespeare's King Lear.
more sinned against than sinning
Less guilty than those who have injured one, as in It's true she took the money but they did owe her quite a bit
in a way she's more sinned against than sinning. This expression comes from Shakespeare's King Lear (3:2), where the King, on the heath during a storm, so describes his plight.