I'd say there are basically too ways in which "inconsiderate" statements appear. One way is in people who genuinely are not that good at anticipating how others

I'd say there are basically too ways in which "inconsiderate" statements appear. One way is in people who genuinely are not that good at anticipating how others will view a given statement. The other way is in people who by reflex assert dominance and so don't care what effect their statements are going to have. A given boss lashes out at subordinates both because they can and to continue to show them "who's boss". An emotionally incompetent employee may lash out at a boss and get fired because they don't aren't being emotionally aware. Even more, you can get a person who's always asserting dominance and they either rise to the very top or fall to the very bottom. Which is to say, there's a certain porousness between emotionally incompetent and "just being dick". "but being asked to work with a tactless fragile person is asking for quite a bit more. :)" No one can work with a tactless, fragile person. But plenty of people for tactless, fragile people.