Some people would be paid less - those that produce output below min wage level but the employer has no way to avoid hiring them and just eats the difference. Also those that produce output above min wage but there are many people willing to do the same work for min wage so they don't have a choice to agree to that wage too. Some would be paid more - those that produce output below min wage level and the potential employer doesn't hire them because they can't eat the difference, so they get no wage at all now.
In the end, the free market would decide how much 1 hour of work is worth. If employees are sufficiently desperate, this could be below what it takes to keep the human doing the work alive.
