This might be going too far, but Type A personalities don't realize they're being shits. This allows them to get things done, as they don't care very much about

This might be going too far, but Type A personalities don't realize they're being shits. This allows them to get things done, as they don't care very much about what other people think; but sometimes it means that they deliver solutions/products without much empathy for the end users and the individual contributors who made it.