Here's an excellent quote I found in my archives, from a review of Bechtel corporation in the late 90s
"Knowledge Management is not an end in itself.
Companies do not exist for the purpose of propagating and advancing knowledge - they exist to sell products and services.
But to the extent that competitive advantage relies on informed decision making within the business - knowledge management has a crucial role to play".
This speaks to the whole issue of the driving purpose of KM, which I covered in my blog post "Are you putting a man on the moon? Or just trying out a new mop?"
The key three words in this quote are "informed decision making". If the key decisions in the company can be informed by the collective knowledge of the organisation, then competitive success is within your grasp.