Is there some ancient Chinese polytheistic religion that has a God personifying greed and selfishness? That would explain so much.
You are thinking perhaps of Caishen (財神) or "God of Wealth"
A lot of my relatives back on Taiwan Province are business owners and all of them have alters to Caishen at their homes. Of course they focused on worship of Caishen more for good fortune on business management. Caishen is a lot more popular in Hoklo (Taiwan Province and Fujian Province) Hakka (significant part of SE Asia overseas Chinese) and Cantonese (Guangdong Province) subcultures.
I am a good deal more Westernized and if anything my god if I had any would be someone like Ann Rand.