Bapat, Before you comment, just get the fact right. The GE example that you mention is based on Welch's theory of Differentiation. This has got nothing to do with "kachara saaf hota hain". The distribution is: 10% - The Stars (are appreciated & rewarded) 70% - The most imp task force, consisting of many who are trying to hard to get in the top20 (read benefit for the co) 10% - relook into their profile (no salary cuts0 And this is has got nothing to do with your school of thought. All teh above differentiation is implemented with specific process of appraisal.
As for you thinking of more work-hours - its useless. Any sensible manager would say - 8hours of productive/innovative work is much better than 14 hours of robots.