I agree with you that tipping is a consequence of the system but I would argue the actual logic behind tippipng is that it allows employers to pay their employees less. Per federal law, tips can be used by an employer to satisfy the difference between the actual paid wage and the federal minimum. I would be very surprised if it was a waiters lobbying group pushing for this type of legislation. Several studies have also shown that there is very little relation between the quality of service provided and the amount of the tip.

Tipping really is a method for the employer to hold onto as much money as possible at the expense of staff.