Encourage caution and conservative decision-making, Avoid risking society's well-being.
The opposite of an alien sleeper agent, fully aware of their identity and purpose on Earth, they will do the exact opposite.
Suppress himself and remain ignorant of what he truly wants, neglecting his roles as a hunter/protector and a monster. Kill, hunt, and destroy.
The opposite of becoming the ultimate surgical angel, and become the Murderous Devil.