I've always viewed money and spirituality as being very intertwined. Money is an (unforunate) necessity in our society. People who have guilt complexes for sharing their natural gifts for money are not always seeing the full picture. As Erin eloquently pointed out, money can be used as a tool to serve a greater good in society.
For example, I am a very spiritual person. I am also very passionate about ecological issues and biodiversities. If I share my gifts and natural talents to establish wealth, I can then utilize that wealth to help salvage delicate and severely damaged eco-systems.
I believe it's about knowing your purpose and where your ultimate end goal lies.