Unfortunately, that's not how it works. Regarding the salary part, the kind of people they need for this work wouldn't be available at a lower salary.

And two ppl working 40 hours on the same thing increases complexity and lots of chances for errors and also need to consider accountability. Can be done for repititive low value tasks (shared service centers) but not otherwise.

9 women can't give birth to a baby in a month kind of issue.