Ah hold on there my brother. The fallacy with the prosperity movement is it is all Old Testament theology. OT basically says "he who has the most material possessions has God's favor." When Jesus came into the world, He reversed all that. This is why Christ reminded us that the son of man had no place to lay his head (not a mansion with a 2 year mortgage.) Prosperity preaching is basic business 101 - find a niche and fill it. For the African-American ministers you mention, it is no secret the 2 biggest hot buttons in the black community are poverty and single-parent households. So, you build your church around promises to rub the lamp and make 3 wishes and the genie will pop out and give you a husband and a Benz. "All you gotta do is 'sew a seed of faith' of $25 right now and you'll get a husband."
Guess these guys forgot Jesus ran the money-changers out of the temple for turning it into a den of thieves.