nintendont is for gamecube games, not wii. For Wii games, its literally the same as using legit copies from the eshop (if one exists). The only difference is you can force gamepad support for games that may not normally support it, or change the icon and title of the game.
Okay, thankyou, I have one other question , would I be able to just take isos for wii games and put them on the install folder without usb helper? Because seems wii u usb helper does not have all the ones I want. Thanks in advance.