And studies are scientific, but are not science itself. A study can be intentionally misleading in bad faith, but that doesn't mean every researcher in that field is acting in bad faith, just the author, publisher, and perhaps reviewing peers.

Anyone can right a paper. And if they right it on something obscure and bespoke enough, it can be difficult for someone to question their work. Doing so is the duty of peer reviewers, and sometimes these peers for whatever reason will fail to smell the bullshit or raise issue about smelling it. Then the honus is on the publisher to retract falsified papers.

This is why citations are like gold to postdocs. It's what builds their credibility, and that credibility is one of the most important aspects of the academic and scientific world.