Again I agree with Cofty as usual, and these labels can be annoying, people who say they are "spiritual" for example, that means nothing without great explanation and qualification.
But there are of course many, many types of individual in the eclectic group of humans who are Atheists. A good number who are without god/s will turn out to be selfish, some even amoral, as will a good number, I think probably a larger number, turn out to be altruistic, moral people.
This is also true of religious people.
I suppose the selfish and amoral would be thought of by the opening poster as "materialistc", but as I just said, in truth some who profess to be religious are selfish, and some even amoral, so the label "materialistic" is simply of no worth, the label "Spiritual" meaningless.