Managerial and professional people hadn't really used computers, hadn't sat down at keyboards, until personal computers. Personal computers have a totally different feel.
I give Bill Gates an A for vision because, as a business person and a strategist, he's brilliant. His flaw is that his view is not informed by a humanistic or compassionate vision of how to make computers work for people.
Computers ought to help people find their own best path through lots of textual information.