Why would you expect the social dominance of a belief to correlate with truth? Except in the most trivial cases, society has no particular mechanism that selects for true beliefs in preference to false ones.
The Darwinian competition of memes selects strongly for those that provide psychological benefits, or are politically useful, or serve the self-interest of large segments of the population. But truth is only relevant if the opponents of a belief can easily and unambiguously disprove it, which is only possible in rare cases.
Why would you expect the social dominance of a belief to correlate with truth? Except in the most trivial cases, society has no particular mechanism that selects for true beliefs in preference to false ones.
The Darwinian competition of memes selects strongly for those that provide psychological benefits, or are politically useful, or serve the self-interest of large segments of the population. But truth is only relevant if the opponents of a belief can easily and unambiguously disprove it, which is only possible in rare cases.
Or if acting on the damage caused by having a bad model of reality is worse than the signaling benefit of the false belief.