researchers work 40+ hour weeks for months or years. the majority of the work in publishing is reviewing that research, which is outsourced to peers for free. the actual publication is a tiny part (time-investment wise) of the total value.
Further, peer reviewers review for free because they can afford to--they are being paid by government and industry. Publishers cannot survive without being paid.
If academics can peer review, they can do the analysing of reviews and accepting/rejecting, too. Even for-profit publishers often put all that work on an unpaid editorial board.
Also, the costs do not have to be so high that they make Wiley or Springer-type for-profit journals the only way of publishing scholarship. In my own field, the most respected journals are printed by learned societies founded on the basis of an endowment or national academies of science. Since the labour and coordination is already done for free here by academics -- just like with many for-profit journals -- the only additional costs are typesetting and coordination with the printer/distributor, and it turns out that these costs are not so high that you have to lock your content down. These journals do not even have to charge submission fees like other journals in the "open access" movement claim is necessary; it just all doesn't cost that much.
So, piracy is a great solution in the short term, and in the long run there should be a return of journals to learned societies. After all, that is where many of them were originally published anyway before the for-profits bought them up (promising to save on labour and ensure better quality, but in fact unpaid labour is still used and the quality of editing and typesetting has dropped drastically now that for-profit publishers often demand camera-ready copy with no quality inventions of their own).
all this tells me is that there's a serious lack of adequate tools or some common, open platform to facilitate this. it was hard [expensive] to collaborate on sourcecode before Github; now it isnt. it was difficult to research prior art for patents, now it isnt via patents.stackexchange.
want it printed on dead trees? then sure, pay for a hard copy.