Alright, so here is the thing.
Piracy doesn't hurt developers as much as people think, it hurts the publishers. Developers get paid a salary. If a game doesn't sell well due to Piracy, it only hurts the Developers in terms of corporate restructuring and lack of funding. If the publishers don't have money to throw at a sequel, they wont.
As we've seen with the PSP, Piracy can boost the sales of a dying console through the roof. The PSP couldnt compete with the DS, but what it had was an open firmware which people used to accomplish piracy and emulation, meaning one device to do all your gaming, old and new. If Sony saw this and werent so cautious with the Vita, they probably wouldnt have given up on it in US/EU
Sales can also be increased of consoles doing well, see the Wii and SmashHax/TwilightLoader or whatever they were called, 360 and JTAG and PS3 with GeoHot.
Now, where does piracy leave the company that created the consoles? Laughing all the way to the bank.
They get to boost their sales numbers making stockholders happy, they get to create and ship more units, they get to make more good games for people to play illegally but we've seen that hardware sales on consoles that get cracked open start to make up for the lack of software sales.
If you buy a Wii U to pirate Nintendoland, you're doing Nintendo a favor. Nintendoland is like $10 and pretty much impossible to get new unless you go for a bundle. Buy it used and no money goes back to Nintendo anyway. Pretty much all launch titles are like that, we've past the point of no return where they stop manufacturing and shipping new versions of old games unless they're the ones in super high demand (Bayo 2/Wind Waker HD), so none of your hard earned money is going back to the company making the games.
Where does this leave companies who arent Nintendo publishing games for the Wii U? The same place they are now, regretting their decision to create/publish for the Wii U, and piracy isnt going to help/worsen that.
Piracy can save Nintendo honestly, if they clamp too hard down on the exploits then nobody is going to bother buying the console and they'll be even more in the red then they are now, but then again you cant ALLOW piracy on your system, its just bad business. But we cant forget Mr.Gary from Sega and ECHELON.TXT, and how it gave the Dreamcast just a little bit more life before Sega shut it down for good. If they cut homebrew out of the equation entirely, they might be next in line behind Sega and Atari for selling off their best series to the highest bidder and giving up on the hardware we love entirely.
Then again this is all maybes and probablys, and Nintendo isnt going anywhere because the 3DS makes bank even without Gateway/CubeHax/TubeHax/HacksHax/SmackHax