What makes a good job?

All of the students immediately take a disliking to Elphaba because she is green. Elphaba's father gives a pair of silver shoes to Nessarose as a gift, and reminds Elphaba that the only reason she is attending school is to take care of her sister. Madame Morrible arrives to greet the new students, and amongst a confusion with room assignments, Elphaba and Galinda end up rooming with each other. At the same time, Madame Morrible discovers that Elphaba has an amazing natural talent of magic, and tells Elphaba that she could end up at the top if she "makes good" ("The Wizard and I").