Basically the question comes down to, if you can afford to give the employee 5k more, but you are not necessarily willing to take that loss from your pocket, will you lose that 5k by giving it to him or will you earn that 5k another way?
(The question may even more simple in a case where a company has 500k of gross revenue, so bringing in 505k revenue instead in not such a big out of ordinary event.)
In other words, is an employee case in effect similar just as a company has many expenses that offsets your income, but what is determined on Rosh Hashana is the bottom line amount how much you will bring home. (and if you are supposed to make x amount of money, but have a lot of expenses that year, you will obviously earn more gross income to offset those expenses.) And the same thing would be with an employee, where if you have a little bit more of an expense, (because you chose to give him 5k more to pay him on the higher end of the range) you will earn 5k more in gross income to offset it,
OR, does the fact that you chose to give him 5k more, end up coming out of your bottom line because (unlike an expenses that you couldn't avoid), you could've avoided paying him the 5k more, yet you chose to pay him anyways.
