Ok, I know what you mean. In my opinion it's fair to count e.g. Wii Sports sales because most of the people bought a Wii console due to this game (the Wii didn't have much else to offer in the first 12 month).
But nevertheless I get your point... somehow. But still the quotet numbers are crap. Why so?
As Darksaviour69 quotet according to Forbes the best selling game in the US of all times is GTA:IV with 9,43 million units.
Lets have a look which games sold more than that (numbers in million, US sales only):
Super Mario Bros (NES) 29.52
Duck Hunt (NES) 27.34
Tetris (GB) 23.55
Super Mario World (SNES) 12.97
Wii Sports (Wii) 11.92
Pokemon Red / Green / Blue (GB) 11.44
The Sims (PC) 11.39
Super Mario Land (GB) 10.99
Super Mario Bros 3 (NES) 9.69
So, since as I recall, neither Duck Hunt, The Sims Super Mario Land and Super Mario Bros 3 came bundled with a console... well, I have to repeat that Forbes' numbers are either made up for marketing reasons (or whatever reasons they have) or the person responsible finding those numbers did a really bad job.
Sunny greetings, Brenner