That does rather depend on whether the scientism zealots have any influence on the practice of science (I'm really not sure why ignorant people who agree with the mainstream consensus would be any more likely to prevent good science from being done than ignorant people who dissent from it, especially since the latter often hold political power too). And for that matter what the net impact is, given that being a dissenter is a route to outsized fame and influence as well as outsized criticism on many topics.

I mean, I don't think it was members of the public endorsing the scientific consensus that ossified the divide between mainstream medical professionals and homeopaths, or added political implications to debates on anthropogenic global warming. And whilst lots of laymen shouted at each other over whether Invermectin was a miracle cure that Big Pharma were trying to suppress or an unproven Covid remedy most loudly promoted by quacks and anti-lockdown politicos, lots of studies on its efficacy were carried out and I suspect the career implications for those developing world doctors who carried out studies on their patient base, found some benefit and continued to prescribe it even after other studies suggested it was not a cure for COVID symptoms[1] were generally very positive.

[1]it probably helps that, being scientists rather than campaigners, they might have been capable of reaching agreement with the scientific invermectin-sceptics that it quite possibly was only protecting against parasite-related comorbidities, but that still meant it made sense to prescribe to their at-risk patient group