as a dealer you are likely to know little about gambling things. to say the truth. and i have spent more time in casinos than you will ever have.
and are you not almost always taking everyone you deal to advantage of, with an edge on them ? how can you live with that.
and when they tip do you tell them you took advantage of them and their tip is worthless anyways as you pool all your tips with the whole shift?
you are right about one thing though, i only bet when i believe i have an edge as any smart person would do.
and that edge can be on just doing say one bet negative if it can set up something next or later that is better.