Don’t try to get in the way of Karma of others. If you get in the way of others to correct them, then you would suffer the consequences of others Karma. If you see that others are going on a wrong path and their destroying themselves then you can offer some advice with their permission and then just take step aside.
Do not try to change them do not try to teach them. If you do that with them wholeheartedly asking for your help, then you will be blamed, attacked, misunderstood and suffer for others immaturity and lack of gratitude.
*Do read the Disclaimer