Why does the Council of Vocation assign Equality the job of street sweeper?

Equality 7-2521 alway displayed a keen intellect and pride. Equality-2521 has ambitions to join the Council of Scholars. The Scholars, however, fear what Equality-2521 is capable of producing. To break his spirit and discourage his intellect, Equality-2521 is relegated to the menial job of street sweeper.