With Andy away from home, the rest of your family will function a little differently, too. Someone must do Andy's chores. A group influences each member within it, too. We may act one way within group A but interact with the members of group B very differently. A group is stronger when its members are diverse.
Individuals learn from one another, and the group benefits.
A group is strengthened by the diverse individuals within it. Good leadership consists of motivating people to their highest levels by offering them opportunities, not obligations. Because People Are Every person has something to offer. Each group member is a potential leader in that group. We're all O.K., just different.