Why let the leaders lead?

Romans 12 says, “in Christ we, though many, form one body, and each member belongs to all the others. We have different gifts, according to the grace given to each of us […] if it is to encourage, then give encouragement; if it is giving, then give generously; if it is to lead, do it diligently”

It seems that Jesus gives certain people the ability to “lead”; and encourages them to use that gift… diligently. The word there is “do quickly, do one’s best, do eagerly”.

What’s the principle there?

Jesus encourages the church to use spiritually-gifted people… so that tasks get done well; at their best.

Jesus seems to care about quality because he gives being gifted in doing jobs well.