"And there are some men who worship Allah upon an edge - if some good comes to them, they are content; and if some trial comes, they turn way upon their faces; a loss of this world and the Hereafter; and this is the complete loss." (Hajj 22:11)
what is new in that? Self policing or Self control is highlighted in every religion that was there before Quran..
Judaism. Mishnah, Abot 4.1 : Who is strong? He who controls his passions.
Timothy 1: For the Spirit God gave us does not make us timid, but gives us power, love and self-discipline.
Mark 7 Then he called the crowd again and said to them, “Listen to me, everyone, and understand.7:15 There is nothing outside of a person that is able to make him unclean by going into him. Rather, it is what comes out of a person that makes him unclean.”
Buddhism:
With the conquest of my mind, I have conquered the whole world.
Difficult to conquer is oneself; but when that is conquered, everything is conquered.
Hinduism Gita 5.23 :
That man is disciplined and happy who can prevail over the turmoil That springs from desire and anger, here on earth, before he leaves his body.