Engineering tries to make things that do not exist in nature.
Process engineering on the one hand have the function to reduce organisational risks of organisations. Internal Control Systems and Separation of Duties are important regulations to avoid fraud and fault. The Sarbanes Oxley Act or the Austrian Code of Conduct are detailed compliance documents for further development. On the other hand efficient processing stages are necessary to be competitive.
Financial engineering includes the short-term budgeting and liquidity planning as well as optimising the assets and liabilities structure. The best alternative shall be provided for investment and financing decisions. A ratio analysis will give you the answer if action is required.
Social engineering is a discipline in social science that refers to efforts to influence popular attitudes and social behaviors on a large scale, whether by governments or private groups.