So, by your reasoning if a blind man were one step away from plunging to his death off the side of cliff, he would need to ask for help? I don't think so, whoever is closest to him/her should do the right thing and pull him away from the edge or at the very least warn him of what is about to happen.

No matter your religion if you truly believe that you have the answers then isn't it your moral obligation to share that and help people find the truth? However this must be done with compassion, never in a overbearing or pushy manner. If help is refused then you just go on your way hoping and praying for a change in attitudes.