Integrity - Integrity is the qualifications of being honest and having strong moral principles; moral uprightness. It is generally a personal choice to hold oneself to consistent moral and ethical standards.
Efficiency - Efficiency is the (often measurable) ability to avoid wasting materials, energy, efforts, money, and time in doing something or in producing a desired result. In a more general sense, it is the ability to do things well, successfully, and without waste.
Ethical - Ethical is being in accordance with the rules or standards for right conduct or practice, especially the standards of a profession.