The unsuspecting convert to the prosperity gospel has nothing to show for their 'audacious act of faith', but an empty bank account, ill-health, and a bitter spirit against God.
I know these excuses, because hello, I use them all the time. But the Great Commission of the church is to 'Go into all the world and preach the gospel to all nations.' That was a commandment from Jesus, not a 'suggestion'. The Gospel needs to be preached because there is no other way for men to be saved.