The idea of money is personal. Everyone has different thoughts about it.
From our point of view, we see money as a resource that gives its owners options. Generally, the more money, the more options and choices. If you like to have choices of what to do, where to live, what to eat, where to go, what to buy, it seems that you'd be happier with more, rather than less money. But if many choices make you nervous, less money may make you feel more comfortable. (I have seen BUX players get rid of their money first, trade for the rest of the game and hope to sell just before the end. They almost never win and seem comfortable keeping their play style– until they realize that they must do something different.)
Those who say that money isn't important usually have enough that it really doesn't matter to them.
Money is just a tool and isn't in itself good or evil. There is no such thing as a good or evil dollar. What's done with money reflects the personality of its owner. It's unlikely that truly good people turn into greedy uncaring monsters simply because they get money. And we have all seen good people do good things with their money– and bad people do evil.
Earning money boils down to being constructive, productive and increasing ones' personal value to satisfy and better his or herself and humanity. And in our opinion, that's a very good thing.
To make money, one must manipulate resources. Money by itself put in a box, under normal circumstances, will not increase.