I don’t get it - Bias

From past few seasons we’re seeing the blatant bias from Bigg Boss Makers. -Initially it started through WKV and creating narratives for their chosen ones via guests and host. -Later they added tasks to this mix and eventually Bigg Boss himself openly started interfering and helping/ruining the game according to their script for their favorited contestants. The point being of this post is what do Makers or Channel achieve from this biased ness ?? Aren’t all the contestants contractually bounded to channel so they can utilize everyone’s fame and hype for their benefit irrespective of who gets it. So I don’t get it why they’re insisting on ruining the whole BB Brand with these continuous favors and narratives. What are they gaining from it ? If anything they’ve ruined their most celebrated and shows and even the ratings have gone significantly down.