The phrase "materialistic culture" is correct and usable in written English.
You can use it when discussing the idea of a culture or society that places emphasis on material possessions and success over spiritual or emotional matters. For example, you might write, "In today's materialistic culture, people are judged based on their material accomplishments, not their character."
In our materialistic culture, tap water is the generic brand.
So the movies become complicit in the excessively materialistic culture that the novel set out to criticize".
Underneath the wacky characters, there are takedowns of corporate speak and the evils of a materialistic culture.
We allow ourselves to be led by a materialistic culture; it's sad because we mistreat each other to get things we don't really want.
Many of our British readers view the riots as the sum of a materialistic culture and a welfare state that has spoiled its citizenry.
but I suspect that our extremely materialistic culture, with the grab-and-go mentality fostered by the Web, just makes new fans itch for something to wear.
The pressure on young children to be indoctrinated into our excessively materialistic consumer culture is unrelenting.
In other words, Dominique de Villepin regards Sarkozy (aka "the dwarf") as an invader, an occupier, someone who wants to impose an alien Anglo-Saxon, materialistic, inglorious culture on his beloved France.
Indeed, our national celebrations reflect the pervasive self-absorption of our materialistic, consumerist culture, and the name they give us is not a flattering one.
In my prayer I wonder how it is for the Earth itself, at this time of another darkening, when our materialistic consumer culture depletes so much of the land.
"We protest," he wrote, "the materialistic profit culture and technocratic society which threaten human values". Page after page of his publication, The Post-American, later renamed Sojourners, portrayed America as the face of evil, riddling even sympathetic readers like me with guilt.
