Actually, they were originally developed as weapons by Napoleon, if I remember my facts correctly.
Sometimes when you're driving down a road, a bug hits your windshield. It's ugly and unpleasant, but you just activate the wipers / cleaning fluid and it's gone in a few seconds. It's just part of driving down the road. You don't dwell on it, because that'd be silly. Bugs aren't worth the time.
Speaking of Nostalgia... Here's a song based on Mega Man 2's Wily stage 1, though the subject has nothing to do with the game. In fact it is sung from the perspective of a man having nostalgic memories and such.