I don't think sociology is completely hopeless but given its track record so far I would sooner expect intelligence (and empathy, willpower, etc.) augmentation to cure whatever problems plague society than any attempt at "institutional change".
But speaking of track records, I think that the record of those who have called for "institutional change" and got us civil rights, education and healthcare is far better than that of so-called scientists who have favored "applied artificial Darwinism" and advocated for eugenics programs.
Also, I find it a bit ironic that you call for taking lessons from 20th-century mass-movements considering that the article echoes others similar to it -- written by scientists -- around the same time of the Bolshevik revolution, and served to justify other movements with no better record than that of communism.
[1] I'm not a native English speaker -- I don't know if you are -- but you're the first I've seen to write the names of academic disciplines in single-quotes. Is that a thing?