What an interesting question. Often people do not think of group dynamics, but this is an important topic in any group. The wrong dynamic can hurt not only the individuals in a group, but also the whole group. The right group can make everyone function to their optimal level. So, in considering any group or forming any group, there needs to be a good working dynamic. We can see this in various areas. Think of sport. You need a group that plays well together. You also need people who fulfill different positions. Also you need people, who are leaders and people who are not.
The same points can be made in a corporation. You need different people who work well together to make a company functioning at it optimal level. In short, good group dynamics makes everyone better, and poor group dynamics can make everyone worse.