As impure run by people on Earth?
First, they recruit people who can take in the future more senior positions. Conclude a treaty with them that a man sells his soul in exchange for so-and-so, that would serve their instructions. In response to this evil is promoting such people through the ranks.
Secondly, they are driving people into demons, simply put, zombiruyut. These people will spend on the earth unclean.
Third, can physically destroy the human napustit by various serious illnesses, or make an alcoholic.
