It doesn't matter which team "deserved" to have scored a goal.
Cause at the end of the day, it only matters who has scored more.
That's the game of football, as someone once said, "The ball is round."
It doesn't really matter how skilled you are, the results mirror life as it is, "unfair" as it can be.
To me, a fair result is one that awards the game to the side that displayed greater determination to win (of course they must display some competant skills as well). But the results don't always go that way either.
When you think about it, this "unfair" nature is what actually attracts us to the game
It gives us something to cheer, something to rant but keeps us going waiting for the next result of our team.