That appears to be an incredibly classy thing to do, at no small risk to himself. The billionaires have the most to lose with any social unrest, and he exposed himself to support the masses. If so: Respect Counter-possibility: it's a CYA maneuver, which supports both sides simlutaneously and either message can be declared as "intended" post-hoc.
He will have investments, properties, friends or family outside HK. He can simply pay his way to citizenship in most countries around the world.
The average HK citizen has everything to lose, their rights and way of life. He will loose some money and property at the most, depending on how he decides to play it.