I was an engineer and worked in defense engineering and telecom for 12 years. (in the 1980s/ early 90s ) And I Never saw anyone dressed like that either. Absolutely brilliant men and women, many with masters and PHDs. The men (engineers and managers) wore dress shirts and ties, the women (ditto) wore classic suits. Even the factory workers and technicians were neat and professional looking although not as dressed up.
I can’t imagine any of any skill level showing up dressed like that to an interview, or heaven forbid a job, at EDS dressed like that.