Academics are born with a certain amount of merit, corresponding to the degree of higher-level thinking they can cope with. Universities exist to sort people into their correct group. The ordering goes:
Humanities --> Psychology --> Anthropology --> Sociology --> Political Science --> Economics --> Biology --> Physics --> Mathematics
If you are successful in mastering a greater degree of abstract thinking, you are reborn into a higher discipline. If you are not, you descend. Those who master mathematical truths are reborn as artists. Those who cannot handle the Humanities become businessmen.
This is in no way self-serving.