Others are interested in knowledge for its own sake, a worthy use of the university. But for you, none of these seem to be the motivation. It is probable that you will not stand in the limelight very often. All of which is a long winded way of saying that you are interested in social justice. Distributive justice has to do with seeing that different groups in society are treated in equitable fashion.
Legal justice covers our responsibilities to the social system.
Social justice has a wider ambit. Social justice can be described as the obligation upon individuals to participate, according to their ability and position, in group action, designed to make the institutions of society conform to the common good in the socio-economic sphere. Social justice is what schools are all about. Children have a right to learn how to participate in group action, to be strong enough to go against any movements that deny people their rights, and to care about the social fabric of our country. It is not difficult to see why you must become professionals.