Comment by rbanffy

> despite having a significantly higher barrier to entry in engineering difficulty and technical knowledge

RF engineering, in particular, is punishing. The subject is viciously hard (you think shared mutable state is hard? Ha!) and, as people pointed out, for most companies, hardware engineering is considered a cost sink, not a revenue driver, something to be avoided if possible. The only parts where it's not is where companies do vertical integration instead of external suppliers.