I'd assume Smith made considerably more $$$ than Rostron and a LOT more than Stanley Lord. I'm talking just base salary here. Rostron I assume got a huge raise after the Titanic rescue and was the new toast of the town, but not sure if he became the new "Millionaire's Captain" the way Smith had been. Rostron didn't look too much like a captain, no beard or anything. Without the Titanic rescue on his resume he maybe wouldn't have done so well.