The more adventuring a knight does, the more banged up his armor gets. So if you get rescued by a knight in shining armor, you probably got rescued by a really shitty knight.
Platinum, gold, and tungsten never lose their shine and silver plated with rhodium doesn’t tarnish.
If you get saved by a knight in shining armor, that knight probably has money out the ass
Money isn’t gonna do shit if a dragon comes after us!
Also, gold is a soft metal and will crumple away like foil.