It almost single handedly saved the US video game market and by extension parts of the world.
It also ended the era of gaming computers in Europe, as a game the are obviously others I prefer like BOTW but SMB did something on a level no other launch title can touch as it was also the game that changed up how developers designed their games.
I agree completely. What many people don't seem to grasp is the impact as a game SMB had on other games. A whole genre defined and spearheaded by this one game, inspiring many others. For example, when SMB3 came out, John Carmack from ID wanted to see if he could make a game with scrolling levels (platformers were confined to screen by screen on computers until then) and he remade SMB3 on the computer. Eventually this development resulted in Wolfenstein, Doom etc. games that were very influential in their own right.