For me helping people is the purpose of money. I think most millionaires understand that it is impossible to be a millionaire for very long without continuing to serve and assist others. If you spend all of your money just to help yourself you will go broke very quickly and not be a millionaire for very long. If you use your money to help others than you will have more of it. This is what millionaires know about money that most people don't.
*I believe the purpose of money is pretty much the opposite of what the media makes it out to be. The primary reason for money is not to have bling, great fashion, a nice crib, a cool whip, fancy rims, etcetera. Is not very fulfilling to spend money on things like that in my opinion. The purpose of money is to better society and civilization. To improve the world/environment and provide better lives for people and animals. By better lives it means ensuring that everyone lives in health and happiness, in a sustainable manner, and has all of the essentials necessary for life such as food, clothing, shelter, water, freedom, health/medical care, education, peace, instilling sense of community, dignity, safety, security, and respect for all people.