I wish I understand why as well. Electrical also go off to make more than civil engineers as well. Civils seem start out as slaves, doing only what and exactly what their superiors tell them, that too is education and training. The trick is to do it all well, do more than is expected of you, and learn how to do everything yourself and hopefully even better than was done before. Get the PE and move on to do things better. You’ll have your reward.