No religion can flourish in Chinese cultures which cannot provide a straight answer to this question. This question was posed by my mother on one of those rare occasions when she discussed religion.
Yes, we Chinese are all materialistic and commercial cretins who are too busy trying to earn a living and provide for our family to spend too much time and… resources pondering elevated spiritual matters.
This also incidentally partially explains the growth and popularity of Protestant Christianity in China. Protestantism is associated with Western economic growth and commercial prosperity which strikes a cord in our commercial souls, just as Western science, rationalism and technology was the major impetus for my conversion. British cannons blasted us during the Opium War, clearly their God is the right one, something like that. But ultimately, our motives are clearly material and empirical.