The gold bar isn't in a large empty room. It's in a room filled with piles of gold, each more massive than the planet Mercury, for every person on Earth. Amongst those piles, would that single bar still hold value to you?
Edit: Formatting engine didn't like using * for multiplication
https://www.youtube.com/watch?v=0fKBhvDjuy0
Is a nice recap of just how vast the universe really is and how utterly insignificant we are within it, in spite of all we're figured out and have achieved collectively. It certainly humbles me.
I'd side with it not being a good argument.
The idea that if there are millions of planets like ours, containing billions and billions of beings like us, on average your "problems" could be a lot worse. I find it humbling imagining the epicness of some of the struggles going on elsewhere in the universe.