Why do Hong Kong people believe in Feng Shui?

Most people who believe in geomantic omen are well-off. They believe that human strength is superior to nature, so they don't believe in God, Buddhism and idols, but most of them believe in human strength and wisdom. However, many of these people choose Feng Shui, because they think Feng Shui is just one kind? Natural science? Like no? Liangding? Or put some crystals at the bedside, so that the whole atmosphere and environment will be more integrated into nature, people will feel more comfortable, natural and refreshing, people will be happy, and financial resources will roll in.