Jesus never said that his followers would *go* to “Heaven” per se. He repeatedly indicated that the “Kingdom of Heaven” would *come* to them. To me, that seems like a pretty big difference. As far as I can ascertain from my reading, Heaven itself is a realm reserved strictly for God and His angels. Jesus said that no one has ever ascended there. (John 3:13) I suppose he would later become the first, if not the only, exception. (Elijah is disputable. 2 Kings:2)
What if evangelical mega churches became known around the world for things like providing water access for entire countries or fighting to end the AIDS pandemic? Imagine what integrity that would give to the good news we preach, especially the gospel that Jesus declares is good news to the poor.