The secret behind River Road music success

Why is river road music (mostly gospel) doing very well in the market than our secular once?

 The river road once use very little money to produce their videos but end up making a lot of money from the cd sales while our secular once spend a lot of money in producing quality videos but get very little returns.
Camp mulla spent 4 million shillings to produce two videos while the likes of Nameless, Redsan,Prezzo and others spend not less than Shs 400,000 per video.
Getting this money from the video sales is hard because the rate of music pirating is high leaving the Artistes to earn from shows only.
River road artistes use a maximum of Shs 200,000 to produce a full album and their videos have a longer life span than the secular once. This is why they earn more from music than their counterparts.