Tipping is an unegotiated unilateral contract. It is basically a power trip.
A local restaurant chain here adverised that they had increased staff salary and would automatically charge 15% (normal tip around here) of the bill for service to everybody to compensate. This way, the prices on the menu stayed competitive with other restaurants, they were able to pay their staff better, and customers would end up paying the same as before. They had to stop the experiment within a month of two because people stopped going to their restaurants. Why? What's the difference? Basically people no longer had their little power trip.
Yeah the tips-being-power-trip thing holds true too. People love to make their opinions known. But of course so few of the things customers usually have issues with are the server's fault: food's not cooked right, rice costs extra, etc. Customers take their anger out on servers and the owner/manager doesn't care either way because they're still getting paid.
The only people who would be shafted are servicepeople, not owners. Even with a successful boycott servicepeople would still be getting paid less, even if from the owner's pockets.
What pressure do you imagine would reach those in power? Why are you trying to shove market-based thinking where obviously no reason exists?