When you have a metric driven company, where peoples career progression and bonuses are tightly tied to revenue numbers in a database, you incentivise this sort of thinking on an employee level. The visibility of the impact isn't necessarily there at the top.
Not just a metric driven company, but one that's so large the left hand doesn't know what the right is doing and neither of them could optimize their jobs for the other even if the incentives were for them to do so.
