In that case singling out Mr. Beast makes no sense, there's reality TV shows which are much more extreme in embarrassment and torture than any Mr. Beast video.
Part of the article is about the intersection of embarrassment for money and algorithmic content recommendations. Mr. Beast is an example that embodies both of these trends, whereas reality TV is necessarily less "online" than a social media influencer. In a lot of ways, online content is an intensification of the trend that reality shows like "Fear Factor" started.
It's also a short article. Bringing in other examples would necessarily lengthen the piece and potentially distract from the major points of the piece.
