As a former waiter I agree with both OP and you. Yes there are people that are difficult to deal with, and yes a system ought to account for that possibility. I

As a former waiter I agree with both OP and you. Yes there are people that are difficult to deal with, and yes a system ought to account for that possibility. It's funny how that is playing itself all over again over a varieties of issues where people seem to be holding opposing views where in fact they don't have to be. Proponent of better systems can acknowledge indivual's flaws without renouncing to reforms. Morals-oriented people can acknowledge that shaming and or moral postures do not actually work without having to renounce to their feelings. Of course here, it's about economics. Better overworking employees rather than paying one more salary. That is the economic incentive is stronger than the "aim at the most efficient system" one.