The worst part of it, is that no one gets punished for pushing the lies. So either when an atrocity actually happens, people don't really care anymore.
And western media is a recurrent factor in all of this. The same psychopats who helped pushed the Iraq narrative, helped push Libya, then pushed Syria and none of them have to issue a single rectraction or apology for being pathologic liars and murderers.
China has it right whenever they harass a western journalist.
To be honest, these actions are banking on the public perception and attitude, or lack of a better English word, ”民风“ (I translate it as "the civilized-ness of the people").
The more the West does this, they more desensitized their public become. The aftermath is that people will simply be less and less intrigued and responsive to these news. The entire society will become less civilized, less united, less loyal to their Moralities and Higher values, less loyal, trusting and supportive to their governments, and more selfish and self-serving.
Of course, what's worse is that people become more tribalistic, in which they don't care about truth, real human rights, and civilization anymore. They start to just want to win: both in a real conflict and in a conflicts of words. They buy into their side's rhetoric simply because they want to win and triumph over the other side.
This kinda mirror the 春秋 transition to 战国 in China: the shared principles, code-of-honor and game rule declines amongst the many feudal states, and Might and Violent Force become the new paramount principles.