You can live in a commune in the woods in France, away from money, eating what you plant sure.
I'll use the definition of money as your fundamental resource, ie you're living a lifestyle that requires it for food and shelter. That's the life most of us are living. In that sense, questioning the importance of money is like questioning the necessity for air.
I go through the responses in here, and what anywhichwayoucan, nick crosby and jaffod have posted is accurate. The question isn't about money, it's about you really. If you're the sort that deeply cares about people and family, money is through which you can make a difference: ie whether what you feel for them remains just that, an emotion without any practical manifestation, or whether you can help pay for an education / a better medical treatment.
If you're the sort that isn't arsed about these things, then it'll show in the things you waste your money on.
On its own, there's very little to discuss about it imo, it overrides everything, assuming you use the definition where without it, you're liable to starve to death.