Are those profits returning to China? If they wanted profit they would invest in Chine RE which (until recently) was much more profitable and speculative than western RE. Western RE investment was for capital flight to bring wealth abroad. Very few want to bring money INTO PRC.
Baby formula actually great example, at least from what I know in AU market. Yeah you had the occasional tourists bringing back a few cans to savec money, but the sellers getting 30 tins and doing weekly shippments to regular customers in PRC were getting paid in AUD. $60 per tin into AU economy flipping milk powder. It's a good gig, it's no real estate money though. You can argue it's net bad for society because some gain at society loss, but that's how it be in capitalism. Some interests profit at the cost of others. And the interests who profit from PRC money, arguably the establishment, wants to keep profitting.