In any area of leadership, your most important asset is the people you lead. The worth of this asset increases or decreases, depending on how you treat them.
In the relationship between leader and follower, the banking principle of deposit and withdrawal is constantly at work. When something positive is said or given to a follower, a deposit is made. When something difficult has to be said, such as talking to someone about poor job performance or consistent tardiness, a withdrawal is made. Things can go very wrong if the withdrawal turns out to be larger than previous deposits.