I can't condone paying chefs lower than the minimum wage if the hours they work and the pay is imposed but I still have absolutely no problem at all in the service charge being treated as general revenue if front of house staff are paid well for their professionalism
I've never expected service staff to directly benefit from a service charge added to a bill other than it adding to the general revenue and helping a restaurant to pay decent fixed wages whether a restaurant is busy or quiet
Tips are different