Leadership In An Organization

I believe that leadership is a huge part of a business. From top managers, to middle level managers, to the employees. The way the managers act and behave will always reflect upon the way the employees act. I know this from my own personal experience. I have had jobs where the assistant manager is lazy and isnt not responsible, thus the other employees including me became somewhat lazy and irresponsible. I have also had jobs where the managers are paranoid about little things, so as a result I saw the other lower employees also paranoid and picky about little things. So the way the higher employees behave, like the manager, assistant manager etc. reflects upon the behavior of the lower employees. Thats why managers must be good leaders and good rolemodels for thier company.

What other ways does leadership affect a company?