I have known a few. They are generally not grounded at all - stuck in their logical mind, avoiding and blocked from emotional feelings; Long-term suppression / repression as a coping mechanism. They feel safe in the logical plain because they can highly understand the functioning of the world, which then can allow for a very good ability at manipulating others - though many humans are good bullshit detectors, so long as their story gets more and more complex. Calling them out on the behaviour, even with the intent of no harm, and explaining to them their behaviour - so they can see it reflected back at them, from my experience, has them moving towards a defensive posture with their guard up. You have to be careful because they are very sensitive, hypersensitive almost, and fragile, and they may direct and project anger towards you as you could be seen as a threat.

I can only imagine this kind of behaviour evolves from a deep and intense fear of survival, also associated with reward from positive interactions with others. If people get away with this behaviour when they're young and it "is helpful" to them as a coping mechanism, then it'll follow them into adulthood. The people who are successful enough at it will be able to gain resources and relationships, at least for long enough to keep perpetuating the behaviours, and they won't stay in one area for long - this is the only way they could maintain succeeding with this kind of behaviour. You can have sociopath who doesn't lie though, too. It's just when you combine it with someone who feels they're getting away with lying, then they'll see how much they can get away with.

These people, if they're to be behaving this way successfully, are very intelligent - very sensitive people to begin with. I've always thought they'd be able to be very successful if they were honest and kind in their dealings, however this makes me feel/realize like it really must be something traumatic that occurred for this behaviour to take hold; Fear of survival is a fucker, and I can sympathize with the possibility of this as a coping mechanism. Basically imagine a lost, lonely, terrified child - emotional state/maturity wise - and how that "child" may behave in order to have connection, relation with others.

To answer your question finally, business is basically where people can network easily, where people are open to relationship building. It's where there are resources available too, and so someone who's seeking relationships and has fear of survival - needing to pay for food, shelter, etc - will naturally more likely lead into a business environment.

To add as final, I don't believe they have the intent to be hurtful or harming - it's just what their past hurt that hasn't been healed, that's directing their logical behaviour; They may not understand this either or fully realize to the degree it's influencing them because it will have been deeply repressed emotion. Also, people will be at different levels of awareness and healing - and could be more aware - but still stuck in the behaviours that they know work for them (at least in the short-term), and may just need a situation and role to find where they don't need to use these coping mechanisms. Though I can imagine too that's a tricky situation too because they won't any longer have the incentive to need to change, but just to change enough to find something that causes less threats, e.g. continuously being found out as a liar, betraying people, breaking trust, etc..