Quote: phe13 "Yep, what's wrong with having a draw?'"
I think it's a reflection of society as a whole, and how there is very little middle ground anymore. You're either a leftie or right wing, an eco-warrior or a climate change denier, a success or a failure, happy with a small slice or you want the whole pie. Basically, society has been reduced to winners or losers, and in the entertainment/sport industry, it's a more exciting prospect to have triumphant winners and dejected losers.
A deep explanation I know, but I think it carries a certain amount of credibility. Why share the points, when for a few more minutes of graft, one team can take the whole lot and the other gets nowt?!