Why don't companies realize the more you pay a highly skilled worker, the more you get out of them? Tech companies seem to get it but so few others do, includi

Why don't companies realize the more you pay a highly skilled worker, the more you get out of them? Tech companies seem to get it but so few others do, including startups. I usually have 1/3rd the staff I'd normally need but I hire top tier people at 2x what most startups pay. In the end I save money.