My favorite example is actually one that I believe could be true[0]: self-reinforcing cycles of human conflict, that resemble the life cycle of a parasite. From an old (2014) SlateStarCodex essay[1]. Some of it is going to be controversial read today[2], so I'll just give you the relevant "money quote" from the end:
<quote>
What would it mean for a meme to have a life cycle as complicated as toxoplasma?
Consider the war on terror. They say that every time the United States bombs Pakistan or Afghanistan or somewhere, all we’re doing is radicalizing the young people there and making more terrorists. Those terrorists then go on to kill Americans, which makes Americans get very angry and call for more bombing of Pakistan and Afghanistan.
Taken as a meme, it’s a single parasite with two hosts and two forms. In an Afghan host, it appears in a form called ‘jihad’, and hijacks its host into killing himself in order to spread it to its second, American host. In the American host it morphs in a form called ‘the war on terror’, and it hijacks the Americans into giving their own lives (and tax dollars) to spread it back to its Afghan host in the form of bombs.
From the human point of view, jihad and the War on Terror are opposing forces. From the memetic point of view, they’re as complementary as caterpillars and butterflies. Instead of judging, we just note that somehow we accidentally created a replicator, and replicators are going to replicate until something makes them stop.
</quote>
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[0] - In whatever sense models are "true", i.e. a nice way to describe reality, that's succinct and has good predictive power, or something.
[1] - https://www.slatestarcodexabridged.com/The-Toxoplasma-Of-Rag...
[2] - Which is not the same thing as saying it turned out wrong.