When I started engineering school, all freshmen had to take some orientation lectures to learn about the profession that is engineering, etc. After going over some starting salaries for engineers, the dean who was lecturing said in closing, "But, no matter what, knowing what you'll make after graduation is not enough to get you through it. I promise you that. If you're here for solely the money, you will not make it. You need to be here because you enjoy it."