It's what they do when they prevent bad science from being published. Those reviews are at the very least shared among other reviewers. If you think they could get away with the sort of bullshit of which you're accusing them, you're not doing a lot of critical thinking.
First, mainstream science isn't a fucking cult and the majority holdings - the consensi of mainstream scientists - are not dogma. But if you can provide an example of a paper that should have been published but was blocked because it questioned the consensus, I will be very surprised. But, hey, surprise me.