Psychometric Testing makes everyone's life easier

Candidates are inherently suspicious of psychometric tests. Understandable as many employers misuse them and keep all the information to themselves. However with proper use psychometric profiling will help the candidate and the employer discover if the job and the candidate are a good match. You see unless it works for both of them then there isn't a good deal on the table. It should be a win: win situation and nothing less. Maybe i'm an idealist but as an employer wouldn't you prefer that the candidate left the interview knowing that the job just wasn't suited to them and why? Surely better than them thinking they weren't good enough in some way. Pschometric profiling should be helping to reduce judgementalism and it can if it is used properly.