They have been working longer, which means that employees in this age group have the kind of insight that you just can't teach. They've seen firsthand what works and what doesn't and use this awareness to form the basis of the decisions and choices they make.
This is the generation that created the internet and developed 'Best Practice' solutions, which makes Mentern professionals valuable in any management or consulting role. When you need leaders with experience, they'll be up to the task.