Of course.
Listen, the way you can show a druggie the Light, = the way out......is by giving them hope that there is a way out.
"look at me". "Look at what JESUS did for me.....and He can do it for you".
The worst part of being a "Hard Drug" user, is that after a while, there is no real "High", or pleasure......its just......>"OMG, i have to get more or i feel like im going to DIE".
Who has faith?
Everyone has "the measure of faith".
Everyone believes ..., and if they take that faith and give it to God, trusting in Christ then He will give them Eternal Life.
Not everyone has faith in God though. God exist in all people, but some people ignore him all together. It's called Faithlessness.
If you believe you have the right to go around judging people, by all means do as you please, but I believe you are seriously in error at least in my opinion which accounts for very little.