Since money is a representation of social power, money and power tend to go hand in hand.
Some people don't see that money is a representation of power, and think that money is valuable in itself. Money by itself is only a worthless piece of paper. (Or even less than that, since paper money is only a percentage of the money supply.)
If money doesn't have the trust of the people to back it (which is where its power and value come from), the financial system collapses.
When using money, it is important to keep in mind that you are using power and influence over the trust of people you are dealing with. Actual money may or may not be an accurate representation of that trust.
Keep your priorities straight - To fulfill your goals, use power available to you. To manage that power, use money as you see fit.