as you said gadarene
we're human beings,first & foremost,the same blood runs through all of us,
so for this point all people have obligation for each other

we have to advice each other as we respect
but if every one live alone don't care about what others do this will be the end of world

this is an advice you can take or you can throw away this is your chice ......

the wise man choose for himself the best ,and the good one like for others the same as for himself.

this is my obligation towards you

but now you will have an obligation towards me ...that when the God ask you in the Day of Resurrection " Did you receive the message? .... you have to say YES..!