This is nothing new. It's the very basis of nationalism. That guy over there who was born in the same arbitrarily defined area of a landmass as me did something good, so I should be proud of it.
When you get down to it, why should you be proud of anything that anybody has done?
Analysing every aspect of human behaviour is ridiculous, because there's no real "point" to anything that anybody does. Save somebody's life? They'll still be dead in 70 years. 70 years out of the billions which the universe has existed.