Hmm. Really?! I worked for various large corporates, studied for a MBA after my IT career; found out about ethics and other ontologically speaking really valuable things in life hence left. But really, besides personal spectives and/or ego's.

:: Henry Mintzberg basically said it all in 2004 already: https://books.google.nl/books?hl=nl&lr=&id=zsYAeVgwHDQC&oi=f... ISBN-13: 978-1576753514, ISBN-10: 1576753514 " Managers Not MBAs: A Hard Look at the Soft Practice of Managing and Management Development"