i think if you take the song for face value it is as oroborous said above,however do a bit of read between the lines. i seem to think its about how most people will be nice and stand by you and help you in certain situations becoming your hero and you've realized that they arent that type of person, they are 'grinfucking' you. villains or people you've looked down on as bad apples etc are really the only 'real' people out there as they show their true colors with no bullshit. basically we all try to be heroes but at the end of the day we are all guilty and victims of something deceitful,hence we 'pray for villains' true friends.
i think if you take the song for face value it is as oroborous said above,however do a bit of read between the lines. i seem to think its about how most people will be nice and stand by you and help you in certain situations becoming your hero and you've realized that they arent that type of person, they are 'grinfucking' you. villains or people you've looked down on as bad apples etc are really the only 'real' people out there as they show their true colors with no bullshit. basically we all try to be heroes but at the end of the day we are all guilty and victims of something deceitful,hence we 'pray for villains' true friends.