In Death of a Salesman when Charley says: "No man only needs a little salary." What is he referring to?
Charley is saying that once one is immersed deeply in the business world, they are forever unsatisfied. A promotion or a raise only whets the appetite for more money, more power. He is not condemning Willie for being lost in his impossible Dream. He is instead saluting the complete commitment he has shown in pursuing it.
See the theme of the American Dream.