Titus 1:7

For the overseer, as God’s steward, must be blameless, not self-willed, not quick tempered, not addicted to wine, not violent, not greedy for dishonest gain (but financially ethical). 

These qualifications and standards transmit to all areas of leadership in the church or outside.  The church and the world both need people who lead fairly and honestly.  God counts on His people to be influencers in the world for good.  They represent God, and He is good, and so should our leaders.