It says that the company is considered from the point of view of an employee eg.
-- Who's going to pay?
-- Your company
-- Wait, I don't own any company!
To gather oneself together means to prepare for action.
A corporate image is that of a big, serious company who attaches strong value to rules and core values like discipline, commitment, dedication etc. The employees are to do their best, individually and collectively, for their company. I used to work for JPMorgan, an American bank, and they had some corporate culture!