Being a leader means dealing with people, interested parties and rapidly changing situations, often with conflicting agendas. It takes maturity to stay calm and acting constructively. More specifically, it takes social maturity.
The days of stable and predictable markets are long gone. One of many consequences is a change in leadership requirements. It’s no longer possible for a solitary, strong leader to have all the data to make informed decisions by themselves. Instead we depend on the diversity of expertise and perspectives that naturally comes from a dynamic group.