Why does the executive branch include many independent agencies and regulatory commissions?

The executive branch includes independent agencies and regulatory commissions to ensure that specialized functions, such as regulating specific sectors and enforcing laws, are managed by experts free from direct political influence. This structure allows for more objective and consistent decision-making in areas like public health, environmental protection, and economic regulation. Additionally, these agencies can operate with a degree of autonomy, which helps maintain credibility and public trust in their regulatory processes.