good, not only is it malware/spyware, the chinese government can shape the beliefs and behaviors of > 100,000,000 americans at the flip of a switch. albeit users are idiots for giving their attention in the first place. and because capitalism = god, will probably end up selling to the saudis.
yes, facebook can/does propagandize the populations of other countries, though perhaps slightly less nefariously than if an authoritarian/totalitarian government was at the helm. fb is banned in china so there is that. interesting times. all hail king zuck in his fbverse.