The entire point of peer-reviewed research is so that an outside, independent researcher can verify the validity of the data. They are not "like-minded".
Really now? I suggest you look up the Steig et all fiasco for an example of peer review gone amok. Corruption doesn't even come close to describing what went on with that.
Stuff like that happens sometimes, and it is incredibly sad. It still is in an incredible minority of that which occurs in the peer-review process.
For most scientists the peer review process is done in such a way as this:
1. Research is done, results are submitted for peer review.
2. Peer commits to researching the same subject.
3. Peer comes to same conclusion separately and verifies the findings of the original.
4. The entire thing goes back to research to improve the accuracy of the conclusion until it is within an acceptable range of certainty.
5. Findings are published.
That's your basic peer-review process.