It is about money. High-level government employees used to retire and work for contractors that sold directly to the organizations the government retirees came

It is about money. High-level government employees used to retire and work for contractors that sold directly to the organizations the government retirees came from. That is called a revolving door and occurred with both military and civilian employees. The practice of the revolving door is recognized widely as unethical. To avoid concerns about ethics, many high-level government employees retire and join either investment groups or boards of directors. This puts them once removed from the money chain, but still allows them to line their pockets by leveraging the power they accrued while working for the government.