Bad writing is typically a necessary prerequisite of good writing - it's pretty rare for a Dickinson or a Fitzgerald to just appear fully-formed out of thin air. The more it is viable for folks to spend their time honing their writing skills, the more likely we are to discover great writers.

This is, notably, the exact same argument we make for why tech firms should hire junior engineers. If one doesn't keep subsidising opportunities for the up-and-comers in every field, one quick runs out of experienced candidates.