I know plenty of creators that don't want to spend their days blocking and tackling. Most "creators" just want to sit in front of their computers all day getting stuff done. With Holocracy those creators you talk about would assume more responsibilities and can no longer hide behind the servant.
Lastly, why are middle managers always seen in such a poor light? Why isn't a CEO/CFO/CIO seen in a lesser light since they really don't produce anything.