Right, but there are still differences in prices between different makes of the same type of wine. For example a bottle of Charles Shaw Cabernet (ie. two buck chuck) vs. a Robert Mondavi Cabernet. So to put that in employee terms Alice makes $X and Bob makes $Y. They are both front end developers. Alice makes significantly more because she produces more and higher quality work. So what is gained by making these "prices" transparent?
I'm not quite sure what your point is. Your analogy is to two difference bottles of the same type of wine that have clearly marked prices that are very different. No one is questioning whether it sometimes makes sense for different bottles of wine to have different prices, or whether there are sometimes legitimate differences between employees in the same type of role that justify different salaries. What we're questioning is whether the salaries ought to be transparent, as the prices are for the bottles of wine.
