Ezekiel 33:33 And when this cometh to pass, (lo, it will come,) then shall they know that a prophet hath been among them.
They may not hear or obey the message but at least they need to know that there has been a prophet among them. I think that the shocking thing is that the great majority of people around the world do not hear so they can’t obey even if they wished to. At least they should be able to have the testimony that there was someone there telling them the truth. What can we do to change the sad truth that there are no prophets among them and none desiring to go.