Mark McCormac wrote the best-selling "What They Don't Teach You at Harvard Business School" remember ? So dont blame the author, its another matter that Mark was authority on business mangement being a global business achiever.
Formal B-school qualification definitely helps. It possibly helps the graduate more than it helps the company in the short-run. Sorry guys :-) In the long run, bookish knowledge is forgotten by most learn-for-the-exam students.
Me & my cousin have a theory. Intelligence, knowledge, qualification, employment, success, happiness have no relation with each other. You can find persons having ONLY and ANY ONE of above assets.
We could also say.. managers learning by experience learn by their mistakes. B-school grads SHOULD learn from others exeperiences. LETS HOPE its true. Therefore B-school boys ( n gals ) may be little more scientific in their management but NOTHING CAN MATCH SHEER INSTINCTS & GUTS.
How many are b-school grads are good Entrepreneurs ? and how many businessmen went to b-school ?
Statistically, B-schools are good for high salary jobs. This is the only conclusion i draw for sure.
For businss sucess, there is one mantra. Put your principles into dustbin, Bakra mile toh kaato.. its survival of the fittest, not honest.
Last word...... dont generalise on ANYTHING guys. You can be good example of contradiction on every line above.