It's not okay to let yourself be taken advantage of.
Jim, who is very intelligent, goes to high school and is asked by many people for answers to their homework.
Jim wants to be helpful to others.
Jim offers to tutor anyone who asks for answers, charging them a set amount of money per hour for the privilege.
Jim gives the homework answers to whoever asks him without demanding anything in return.
Jim turns his genius into a profitable business and others realize that Jim's time is valuable.
The people learn that Jim will let them have anything and use him to get ahead in life.