Hi Finkelstein
Even
if you see and witness someones behavior reckless and harmful to
themselves and others you dont or shouldn't stop all contact to these
people, not in today's understanding of human psychology . Jesus ate with sinners but he was in control where and when he needed to be.
I watched a program once on a girl speaking to her father who had been abusing her. He wouldn't stop and she said these words to him, "dad I love you but I wish you would stop doing the things you are doing to me."
Now that girl, presumably removed herself or was removed from her father's presence. Until he changed his behaviour, how much interaction could she have with him?
Change the crime to theft, drug dealing or whatever. If you help someone and that is the life they live, their economy, their household, so to speak. How are they going to thank you for anything you do for them as a friend? Invite you to a drugs party? Make you a gift of something that doesn't belong to them?
Sometimes you have to step back from people, otherwise you are making a victim or yourself or you are potentially on the road to getting involved with wrong doing.
People can put themselves in positions where you can't help them.