If a lawyer works off of contingency it can be based on levels. Some lawyers will say if a lawsuit is awarded the first X number of dollars is at Y percentage, then the second set of dollars is at a different percentage and so on and so forth. So the attorney may be taking a number of different percentages at different award levels all for the same case.
Also, many courts require that plaintiff's at least attempt to settle the case out of court. This is because the back log of the American Judicial System. Also, there is non-binding and binding arbitration and mediation that many courts require plaintiffs and defendants to go through before a case can be docketed. Many times the arbitration and mediation would lead to an automatic non-disclosure agreement because it was not adjudicated in a court.