When a business is at the forefront of technological innovation and implementation for decades, the cost of infrastructure builds up, especially when labor cost goes up accordingly.

Now for a nation that is still building itself up, the labor cost is lower and you can simply take the know-hows and older hardwares from the innovators, which significantly cuts down on cost of implementation. Adding that to the economies of scale you can get at 1b+ in population and things can look obscenely cheap.

Of course, that doesn't mean that the businesses you get services from don't abuse of an oligopoly environments and other practices