It's a law of nature that they will _try_.[0] That's why people should always have ways of defending themselves, whether it's with courts or guns.

[0]: This is not a figure of speech - many anti-social traits which result in NPD, ASPD and their subclinical versions[1] are genetic. There is literal evolutionary pressure to exploit others.

[1]: Meaning the trait is sufficiently pronounced to be harmful to others but not enough to be harmful to the person having it so it's not diagnosed as a disorder.