Umair Haque is always good value if you want provocative thinking about the state of the world. He's got some interesting things to say about the myth of leadership, for instance:

Leaders don't lead. How did this particular skillset emerge? Influence counts because the vast, Kafkaesque bureaucracies that managed 20th century prosperity, created, in turn, the need for "leaders": people who could navigate the endlessly twisting politics at the heart of such organizations, and so ensure their survival. But leaders don't create great organizations — the organization creates the leader. 20th century economics created a canonical model of organization — and "leadership" was built to fit it.

Here's the problem in a nutshell. What leaders "lead" are yesterday's organizations. But yesterday's organizations — from carmakers, to investment banks, to the healthcare system, to the energy industry, to the Senate itself — are broken. Today's biggest human challenge isn't leading broken organizations slightly better. It's building better organizations in the first place. It isn't about leadership: it's about "buildership", or what I often refer to as Constructivism.