I'm not saying run them out, or even that they're worse than White churches, but there is an inherent usefulness in the Black church, and they're failing in an incredible way to utilise this.
Black churches are still large community centers than large chunks of the community feel tied to. If pastors and elder's weren't morons, they would have created vast networks set on building their communities, as well the greater Black diaspora.
There are a lot of churches, particularly Protestant churches, that are popping up in Haiti, Liberia, Congo, Nigeria, etc. that could very easily flex their muscles and break up corruption while working on various projects within their communities, but none of this is happening.