My focus on the individual in the above discussion does not imply that I undervalue the magnificent benefits of teamwork and group activities. But it is because of individual differences that groups of individuals with differing strengths can produce more than can a group of clones. Imagine basketball teams comprised of all centers or all guards. Their performance would be reduced because of their uniformity. They would be as ineffective as would be a school full of only math teachers.
Uniformity is a detriment to successful teamwork.
In conclusion, a reward system based on uniformity is unwise. Because of our valuable individual differences, it is uncommon for a single choice to be right for each of us. Even in that case where all individuals may actually benefit from selecting the same action, requiring uniformity denies the reward to all whenever one classmate chooses poorly. Usually such a reward system becomes an unreasonable test of integrity for the individuals who ought to make the un-rewarded choice. Rewarding uniformity tempts these students to trade their self-esteem for the approval of their peers and teacher.