Wow, you went there. It's bad enough their job is meaningless. I hope nobody who installs BMW turn signals has to see this post. In case they do see this - don't worry dears, one of them will get used someday... probably. /s
I only ask that if you make this your life motto that you let other people know that you're useless.
I know too many people who spend an inordinate amount of energy convincing other people of how valuable and useful their presence will be only to completely and totally be useless because they are intentionally useless people.
I'm not talking about accidentally useless people.
I'm not talking about unintentionally useless people.
I'm talking about willful and intentionally useless people.