Journal Impact Factor (JIF), is a very important part of establishing credibility.
Reputable journals are very selective about what they publish. They’re worried about their JIF.
If you get published in a journal with a high JIF, you can be as close to possible as establishing a foundation of fact, as their articles have a high chance of being both reproducible and accurate.
If there was a casino that took bets for which scientific discoveries would be true ten years from now, I would make money all decade long by betting on high ranking JIF articles.