NES *IS* the foundation for the modern game business it is the great grandfather of all modern consoles, XBox and Playstation included.
It founded the basic business model for the current industry, birthed franchises that are still going strong today like Mario, Final Fantasy, Dragon Quest, Zelda, Castlevania, Metroid, Metal Gear (well popularized that one), and set up the basic tenants of the modern game controller from which everything since has evolved from, and the 1st/2nd/3rd party studio lay out.
The NES also introduced the idea of the "blockbuster" home console game ... Super Mario Bros. 1 and 3 ... before that games were just ... games, you just threw them out like Kung-Fu, Ice Hockey, etc. But the NES really cemented the concept of blockbuster game IP. Video games could be like a blockbuster movie and have fast food tie-ins, merchandising, etc.
Stores would not even carry video games after the Atari crash, the NES saved the industry and set the standard for how everything would proceed afterwards. Without the NES there is no SNES, there is no XBox, there is no Playstation, there is no N64, there is no PS2.
Wii was just a hot craze for a few years, motion gaming today is passe ... Wii Fit U flopped, Wii Sports Club isn't doing much, Mario & Sonic was a dud, Kinect Sports XB1 bombed, MS has removed the Kinect sensor from the XB1 as standard, franchises like EA Active and Carnival Games are now competely defunct, Just Dance is headed towards irrelevance, etc. There's not much lasting impact there.
