Developer salaries are probably not affordable for a majority of companies either. But they pay them, otherwise they couldn't get people to come to work for them.

So at some level of developer pay, N companies are profitable. At N+P, fewer companies are profitable, and at N-P, more. All else being equal.

If we cared as much about our desks as we do about our pay, we'd have more offices, and companies would either make less profit, or there would be fewer companies.

But we don't have offices, because we don't insist on it.

Next time you interview, make that as important as salary.