I feel like this is such an annoying attitude from companies. Just show your appreciation towards your employees and give them a raise once in a while. Without the employee having to ask the employer. I get that money needs to be made, but that will stop fairly quickly if you don't keep your employees happy. Of course you will hear the standard management talk "but then, how are we supposed to know that you want a raise", come on man, no one will ever complain about a pay raise.