Being able to circumvent the system is essential to survival. There are too many regulations to follow them all. Attempting to do so results in gridlock. All progress is made by getting someone to circumvent the system for you.
The line thing is an extension of this facet. If you are clever (and daring) enough to work around the regular queue and get away with it then you deserve the rewards for your ingenuity.
Thus, line cutting is an understandable extension of the culture.
I can't judge it, really. That's just how it works.