It's an interesting debate. I think it all comes down to what Money means to you. Everyone needs money to survive, or at least to have a somewhat comfortable live. But is a comfortable live the only thing you want? Or do you want to not have to worry about money for the rest of your life and what are you willing to sacriface for it? Someone might abandoned things like a social life, love, etc in order to get rich. While another person might only decide to work the bare mininium so they can enjoy as much freedom as they can.
If you ask a rich man if money is everything they'll probably tell you no, because they've never been poor and don't truly know what life is like without money.
But, if you ask a poor man if money is everything I guarentee you you'll get a different answer.