Successful "tech" companies need to have a (relatively) small number of people who understand the possibilities that software open up for their business model.

Successful "tech" companies need to have a (relatively) small number of people who understand the possibilities that software open up for their business model. They have a number of people who are skilled at managing the software and product development process and a (potentially large) number of people who are skilled at software development. Seems to me to be very different to the notion of literacy which is a set of skills that essentially every employee needs to have.