It’s a problem of motivation. Now, if I work my ass off and Initech ships a few extra units, I don't see another dime. So where's
the motivation? And here's another thing, Bob. I have eight different bosses right now!
You can take it up with your manager that you saved 10 minutes of time per day for 2000 workers, equivalent to 8333 work hours per year, equivalent to $2M USD per year, and argue that this value you bring should be reflected in your salary. You can also add it to your CV, to make you more attractive to other employers. Ultimately, you will have to make an effort to convince others of your value if you want a higher salary.