The FBI uses similar testing for prospective Agents....as they wanted folks to be good followers....who would obey the rules....not challenge Management....and basically toe the company line. Remember JEdgar...and his penchant for instant total obedience?
Read a Book called "No Left Turns".....it is an eye opener on what that kind of management environment can lead to.
The system can always be finessed....by those who are smarter than the system and its operators.
Elephantine was one of those guys!
I guess if you are running an offshore operation....needing strict standardization....every thing is routine....crews swap around like good quality mass produced parts....then this psychobabble crap might work.
Put a guy out on his own....in the middle of nowhere....with a varied tasking....no management support or interference....spartan conditions....and having to live with the customer like Man and Wife almost.....and I would not think the same kind of personality would get the job done.
That is the fallacy of relying upon such testing to the exclusion of anything else more along the lines of conventional thinking. Anyone can interview well....but be a complete disaster later on.
Being able to use CRM, knowing your trade, and having good judgement does allow for a very wide range of personalities....does the psychometrics allow for that or do they demand way too narrow an array?