This feels very doom and gloom. Mr Beast gets to make the videos he wants, viewers get to watch amazing videos and people who are featured in the videos generally get paid. Everyone wins.
Most of his videos are basically excuses to give people money and you rarely see participants not having a good time. Having the guy sit around for 100d is the most 'exploitative' video I've seen, but that really doesn't seem like the goal.
If he starts making real-life Hunger Games videos I'd be worried, but it doesn't feel like he's heading in that direction at all. More like a new version of game shows, except it's way less forced, more varied and very lighthearted.