It must be stressed to employees that sloppy paperwork fouls up the system and won't be tolerated. When asked to speak on the benefits of accurate inventory and stock moving authorities, I always refer to the inventory as the biggest asset of the company, and the difference between stock on hand and cash in the bank is typically one digit in general ledger account numbers in the balance sheet. Then ask the question what is needed to get money out of the companies bank account. Small manufacturers tell me all the time that they could never get their particular employees to adhere to tight procedures. I don't care how unique a company feels it is, that is simply not true.
Employees value their jobs.
If the man at the top makes it clear that procedures must be followed, over time you can change the culture of any company. Whatever savings in time and money you feel are you gaining by not bothering with procedures, stockrooms, etc.