One is an adversarial process conducted by experts, that is considered the minimum hurdle for an idea in the sciences to overcome before it is generally accepted within the field.
The other is a political process with a varieties of systems that generally, but not always, means that the most popular political candidate is elected by a group of people to be their representative or chosen lawmaker.
In both systems, you have mob rule.
You've clearly never been involved in producing a study for peer review, or been peer reviewed, or engaged in assessing the validity of peer reviewed study, if you think the peer review system bears any resemblance to mob rule.
I've been engaged in co-authoring a paper for review (economics), editing papers on behalf of others ahead of review (history and medicine) and also critiquing peer reviewed studies in the literature (transport economics).
What you've written has very little to do with the reality of the situation.
In both systems you have tax payer funded garbage studies.
In one system, you don't have any studies. Democracy is an elective process that creates no scientific output.
In the other system, you have a sliding scale of "garbage" studies. Generally speaking the 'harder' (read, more empirically verifiable and/or important) the lower the tolerance for rubbish.
So if the checks and balances can be "controlled", why can't the peer review$$ process?
The peer review process is controlled, and it does have its own internal checks and balances. Some existing circumstances have undercut some of those, but they're still there.
I'm really curious about why you're raising this topic. Reading what you've written, it appears to me that you've got no experience in the sciences and the process of preparing a paper for review or having it reviewed and then defending it and expanding on it after publication. What it seems to me is that you are regurgitating some biased second or third hand reworkings of (valid) criticisms of the shortcomings of the peer review process, further worked through a lens of your own bias, and then are presenting it here.
There are PLENTY of things you could do to improve the peer review process, the quality of submissions, editorial review and articles, the validation/replication cycle and the subsequent critique/response/discussion period. There are (literally) thousands of OpEds, articles, conference keynotes and even scientific studies out there on this.
Go there, read those, learn them and THEN come back for informed discussion.