> I suppose I'm naive, but it seems obvious to me that a company should want to pay its employees as much as possible
"As much as possible" is everything. So no.
> that is, as much as is consistent with the value the employees deliver.
If companies paid for the value the employees delivered, the company would have no profit. Companies make money by taking a share of the value employees delivered.
> It just seems obviously in the company's interest.
Maybe in a disneyesque/"it's a wonderful life" fairy tale but not in real life. Obviously it isn't in the company's interest because no company does it your way.
Actually, employees salaries, like rent, fuel costs, supplies, etc are viewed as costs/expenditures for a company. Something all companies want to reduce as it eats into their profits.