In his book, "The Inmates are Running the Asylum", Alan Cooper describes how nerds in high school don't learn the social graces that others do. Others do things in high school and are "taught" the error of their ways - maybe they duke it out behind the school, they dis someone and here in Oakland they're shot, whatever - the point being that nerds didn't get that social learning that helped others learn how to not be dicks to everyone else. Then the nerds grew up and (in Cooper's book) build UIs that SUCK because normal people don't think in terms of file system hierarchies, for example. These then become the bullies you see everywhere in tech - and believe me, they are everywhere. They grow up to then become manages who have no clue how to communicate and motivate people and teams but they know how to bully. They know how to belittle and tell people they are stupid and that's about it.