You made it worse. Now instead of asking for a raise or changing a job he would hope for another client to gift him money.

Client does not need to be aware of how much each worker in the chain earns. He is aware of the price he is buying the food.

Same as delivery guy is aware of money he gets from the job. If he doesn’t like the money, he should not take the job. Tips are totally optional bonus.

It’s like when you are drunk, but not as much as the other person.