What is the main reason agency relationship exists in corporate form of organization?

The main reason agency relationships exist in corporate organizations is to manage the separation between ownership and control. In a corporation, shareholders (principals) delegate decision-making authority to managers (agents) to run the business on their behalf. This arrangement allows for specialization and expertise in management, but it also creates potential conflicts of interest, as agents may not always act in the best interests of the principals. Effective governance mechanisms are necessary to align the interests of both parties.