In I Talk Back to the Devil, A.W. Tozer reminds us:

"Money often comes between men and God. Someone has said that you can take two small ten-cent pieces, just two dimes, and shut out the view of a panoramic landscape. Go to the mountains and just hold two coins closely in front of your eyes the mountains are still there, but you cannot see them at all because there is a dime shutting off the vision in each eye."

It doesn't take large quantities of money to come between us and God; just a little, placed in the wrong position, will effectively obscure our view.