Calling it a "woman's salary" is a bit of an exaggeration, when mainly-women fields such as nursing requiring higher education pay about 2900-3500 EUR including extras from night shifts and sundays (or about 2500 without any extras).

But yes, programmers definitely are not overpaid in Finland. It's not unheard for fresh CS grads to be paid just 2500 EUR a month, though at least they have career progression unlike nurses forever stuck with such bad salaries...