That's a very interesting question, but unfortunately one I don't have much input on myself. I've always understood materialism as a belief that everything can be, in theory, explained by science (or in the somewhat-related Epicurean understanding that everything is comprised of atoms). As such, its counterpart would be something along the lines of spiritualism rather than idealism. I'm certain that my understanding of materialism must be a specific definition of perhaps a different concept entirely than that which you've brought up. I don't have a great deal of formal knowledge of sociology or psychology. Likewise, I've studied a fair bit of political philosophy but nothing that I can think of which touches on this specific topic. Nonetheless, you've piqued my interest and I expect I'll be heading down a rabbit hole tonight.