It’s like a Myers Briggs test, but worse.
Your certainty is, frankly, really misplaced here. I would be genuinely shocked if there was any social science at all behind the test. These things are almost never based in any sort of social science at all; the odds that this test was subject to the sort of science an actual psychologist puts into such things in an experiment is probably not one in a thousand. These sorts of things almost never come from social science. They’re shit created by people who don’t know any better that are spread around the internet and by HR people. No one, ever, has subjected this test to what a psychologist would consider science - things like tests for reliability, repeatability, long term outcome analysis, etc.
The popularity of the Myers Briggs test or its various imitators, like KolbeI or Tratify, isn’t based on any sort of social science at all. Virtually none of them were developed that way. They’re popular because they make work for HR people and they’re really easy.
Handing someone a test you got off the internet is so, so easy. Actually figuring out the most cost and time efficient way to identify the right candidate for a job is HARD, and it’s fraught with risk. There is no guaranteed way to do it and most traditional methods are useless or worse than useless; I’d guess 98% of all minutes spent in job interviews are a complete waste of time. Handing out long tests and compiling scores into pretty graphs makes it look like you know what you’re doing. It looks productive.
With regards to the DMV driver abstract check, no, that isn’t it at all, actually. You are ascribing far more cunning to the hiring people than is merited.
What happened here is that the company decided they needed a clear system of establishing required competence for job titles. That’s usually done in one or both of two ways; the training matrix or the job description. The training matrix is precisely what it sounds like, a cross-reference of jobs to possible competencies, usually done in a spreadsheet or a simple database, though in very large companies you might have a purpose-built training database. Job descriptions are, well, just that.
What happened here is that - likely in a training matrix - someone concluded, quite justifiably, that a clean driver abstract was required for some roles. If you’re driving a company vehicle, or driving miles for company business (e.g. salespeople) the company is right to ensure you’re not driving on a suspended license or presenting a tremendous liability. But for whatever reason someone either expanded that requirement out to all employees or all production employees, or it just got that way in the spreadsheet.
Changing which requirements apply to who is boring document control work. That would require re-versioning the spreadsheet and maybe filling out a document change form. No one wants to do that, and it’s unlikely anyone has even told them it should be changed; the job candidates aren’t going to complain, and no one internally cares. So it’s that way just because of inertia.