If you do a Google search for Management vs. Leadership, you will likely find the top results imply it is much better to be a leader than a manager. (Though the Wall Street Journal guide says you need to simultaneously be both.)
I searched again this year and if anything there are only more articles that point you toward leadership over managing. Many portray managers as authoritarian and inflexible. However, as I noted in my entry there are those who acknowledge the need for both roles and the capacity of managers to be flexible and creative.
One of those I quote suggests that what might be contributing to the view of management as being detrimental to companies is that there is such a push toward leadership, no one is investing the time to develop excellent management skills.