Yeah, that could be the truth, As a Chinese, I believe most Chinese who get involved in Bitcoin doesn't have a faith in Bitcoin, and the reason why they are working with Bitcoin is to earn money, I mean the most people, but there are still people who contribute his power to the Bitcoin network selflessly.
this is the reason why someone should be worried about the fact that they are controlling 60%+ of the network, if they only care about profit and oneday their profit will not be good enough, for a long time, we all know what will happen.....