I think the distinction is the connotation the word "bribery" has with illegality. Even in very corrupt countries, bribery as
@I7guy mentions is usually at least claimed to be illegal and therefore done under the table.
I can't say I'm a fan of what Tim did, but it is the price of doing business there beyond having stuff made at Foxconn, and it's a legitimate investment in their economy, assuming those R&D centers actually end up employing locals in a meaningful way. If they end up being empty offices, well,

, that stinks for their people and just stinks, period. I'm really not a fan of his little speech about globalization. He did at least acknowledge it's done some harm to some people.
Personally I would not even try doing business there if I were a CEO promoting my company as having all these grandiose social justice ideals. But then the board of directors would boot my butt within a few months. Which is why I'm a housewife and not a CEO.
I could not do Tim's job, ever. I wouldn't last a week. I'd release a Mac Pro, in the shape of a ball and call it the Apple Dumpling. That would be the extent of my contribution. Oh and I'd tell Jony Ive to make Eddy Cue thinner. And of course I'd try to circumnavigate the new donut building on roller skates, if at all possible. Thus would end my very short career as CEO of Apple.