Short answer; no.
Dust, lint, grit, sweat-water, will or could cause problems.
Bianchi-Intl(now a part of Safariland) was started by a ex-cop & military veteran named John Bianchi. He wrote useful guide to cops & gun owners re: leather care/firearms carry/storage.
The book is insightful & the tips are good for any armed professional/license holder.