If Apple execs conducted espionage on behalf of the US Government, they should be targeted. The concern is, they don't, but they will still be targeted.
So far the only major international espionage scandal that was proven (unless you consider Snowden a liar) was the NSA scandal, which showed how American companies were involved in an international scheme (willingly or not, it doesn’t matter) to spy on both allied nations and enemy countries.
Nothing like that has ever emerged about China.
That’s because it isn’t a story. People are routinely arrested in China for things they share on the very-much-not-encrypted WeChat. Anything that goes through any chinese tech company can be assumed to be have been read and processed by the government.