Hope is a desire of/for something. Faith is trusting in something. They differ in that hope more of an expectation and faith is a "knowing" without knowing.
I don't see how someone can operate or being "faithless". We all have faith. Faith in family, friends, the law, tomorrow won't be our last day, the sun will rise...etc.
If you mean Faith as in religious Faith

Religions are just lies we tell ourselves to feel better about how our hopes rarely line up with reality. It's not always a bad thing doe.