It makes sense to profile people based on their psychological traits.

Most folks – let’s just say 64% of the population are Neutral. They are happy, they are blue collar, and they mostly need protection and guidance. They work hard, and they don’t challenge authority. They just work and play, live and die and try to survive. Optimally, they support themselves and their families, and if they manage to do that, we view them as successful. We’ll call them “Tier Neutral”

Above them, we have Tier +1. These are the people who are just a tad bit more successful. They are usually property owners of significance, investors, often business owners or mid-level managers. They stand above the crowd just a bit, and they usually manage to help drive production and output beyond just themselves. They ... need recognition and positions of basic responsibility. We’ll assume that they make up 9% of the population.

Next we have Tier +2. These people are usually philosophical by nature. They are writers, diplomats, analysts, politicians, and speakers. These people make up 6% of our population, and are viewed as intellectuals; but they also fall short of being geniuses, per se.

The top 3% - or “Tier +3” are the scientists and inventors who really possess a mental prowess that is completely off the charts. They are the people inventing the internet, electricity, or the airplane. They are the people thinking of things that most people can’t even imagine. These people need to be sought out, supported, and subsidized – anything – because our hopes of human progress are counting on them.

Working back down the scale to the bottom 18%, we have the folks who are one notch below normal. We’ll call them “Tier -1”. These people are notable under-achievers. It takes two of them to do the work of one normal person. They are the kind of people who wind up with big families and four digit incomes. They usually only understand penalty. A step further down, we find the Tier -2 crowd, prone to violence, often being repeat criminal offenders; and at the very bottom of the barrel – Tier -3 – we move into the realm of mental insanity, wards of the state, truly crazy homeless folks, and the like.

If we conclude that people are innately smart, or innately stupid, or innately dangerous, or innately good - as opposed to all being potentially equal in all regards - then it makes sense to profile people based on their psychological traits. It's just a thought