The effects of good and bad leaders

I have worked for organizations where there were good leaders and organizations where there were bad leaders. I have seen the effects of the “lobster” culture within some organizations. Are the effects as dramatic as Anderson asserts?

http://www.forbes.com/sites/amyanderson/2013/01/14/good-leaders-are-invaluable-to-a-company-bad-leaders-will-destroy-it/