Faith is not a patina.
Faith is a foundation reaching into eternity itself.
You are, basically, strawmanning about something you yourself are quite possibly shallow about. Yes it is possible to sell your soul (or attempt to — because of Christ you can’t actually sell your soul) for guns. And until you stop you won’t be able to reason sensibly about the matter.
It is when it is used to provide you a convenient excuse for cowardice, and inaction.