Yes, it's possible to imagine that occurring, just as with the quest or the gamification of work that you were mentioning.
We've heard from workers that it seems like, if there's an incentive to do 40 drives in 24 hours, then the closer you get to 40, the harder it can be to find work. Therefore, there's a feeling that there's a lack of transparency or almost an exploitation with those incentives as well.
That has implications for fairness, transparency, trust, stress and the relationship that people have with these.... I call them computer programs because I worry sometimes that when we use the phrasing “algorithmic”, it makes it seem so much fancier than it really is.