Awards don't sell many games so it's not really important for the success. The awards are given mostly after a game has sold already most units or will sell many more through word of mouth.
And I don't think two games in one year do much to the sales. We get a lot of games every year, why should game number 156 change much to the sales of another game as long as it's not almost the same game in the same genre?
Talking about Spider-Man, it got a Metascore of 87, not sure if there are many reviewers who really think it's the best of the year (not talking about awards for graphics and stuff)