I have several untested theories regarding YouTube recommendation system. One of them is: is better to promote a video of a channel who's already monetized than

I have several untested theories regarding YouTube recommendation system. One of them is: is better to promote a video of a channel who's already monetized than it is to promote a video from a small channel (creating a new monetized channel). I don't know the bureaucracy behind paying channel owners, but it seems the algorithm favor those videos, even if you've already watched them.