Innovation, Sentiment, Economics, and the Market

The thought “one company’s cost savings are another company’s lost revenue” below offers interesting economic insight:
{ On Private Equity: Scott Schoen, THL }
http://randomjunkyramblings.blogspot.com/2009/04/on-private-equity-scott-schoen-thl.html

As I have pointed out in this blog based on Shiller’s and Stiglitz’s articles, “sentiment”/ “perception” and other such “soft” or “behavioral” aspects play an important part in the economic engine of a region: {Financial Transactions, Trust and Keynesian "Animal Spirits"} & {Financial Markets, Economic Crises And Global Co-ordination}
http://randomjunkyramblings.blogspot.com/2009/01/financial-transactions-trust-and.html

Economic contraction would lead to a destruction of value through the destruction of existing market players, structures and relationships, before the economic engine restarts. This may lead to a slower recovery. This can be a good rationale for a central bank investing in an economy to keep it afloat in such a way.

However, once we accept that “sentiment” is a factor in the economic engine; could the effort to maintain existing market players, structures and relationships also impact the incentives for the economic engine to generate lasting recovery?

What do you think?