I believe they are higher because the labels actually don't count the alcohol in their calculations, and it throws off the nutrition facts to give it a lower value than intended. From the pointsplus info I have, when calculating alcoholic beverages, 14 is the number you want to put in for fat, as that's the average amount of fat (from the alcohol) in an average bottle of beer or glass of wine. The calculations won't be perfect, but close.
I, too, am someone who enjoys some tasty alcoholic beverages from time to time (I love wine!!), so if I know I will be drinking, I usually like to hoard my weekly and activity points for those nights. Luckily for me, I'm pretty much a lightweight, so two or three glasses of wine are enough lol!