The way I see it is slightly difference, interests of the rich will always be prioritize, that is true in ALL modern countries. But the key word here is check & balance. Like, the reason you didn't need to work like a slaves in US, is because you have law and justice to protect your right. And your vote can remove some (not all) of the unfair disadvantage against you. In Hong Kong, nothing like that exists. Because we do not elect our government and they have zero incentive to balance the interest and desire between corporations vs civilians.Singapore has dominant party semi-authoritarian rule which is a no starter for protesters.
I said earlier universal suffrage / democracy won't fix HK's fundamental problems, the interests of the rich and powerful will be kept, and the tire would be kicked.
If Hong Kong every become fully democracy, I would expect it is somewhat similar to Japan & US. Hugh corporation still have a strong say in our government policy. But our government will at least give a token gesture to protect our basic rights.