Money doesn't makes life your life automatically better, but it does make it many times easier. It won't solve all your problems, but solves a heck of a lot of them.
I try to treat service employees well, not because of some patronizing sense of responsibility, but because I empathize with their position.
They have a crappy job and low pay. Dealing with the stress of computer generated everchanging schedules, rude customers, and management that treats you like a child is bad enough. When you couple that with barley making enough to survive, it's a pretty tough existence (realitive to my own).