In a paradise world, every woodworker could have a deep knowledge of forestry, plant biology, the chemistry of dyes and glues, structural and mechanical engineering, metallurgy and tool repair, and so on ad infinitum. But actually we learn the tried and true ways of doing things, acquire skills and workshop knowhow from mentors, maybe occasionally pick up some scientific knowledge from a magazine. In this way I don't think knowledge of computer science is a necessary basis for practical software work.