Asking for a raise is a tough business to go about. It takes a lot of confidence and gumption, and the way our work system is set up makes you feel like it's something you shouldn't be doing. Even when you know you deserve it. You come equipped with evidence and knowing your worth, and you hope to be received the best you can. The very least they can do is treat you with respect and hear you out.
That's why this recent Reddit story inspired such outrage. It's a tale of an exceptional worker being denied any recognition for her ability to go above and beyond. Be grateful you don't work for this company.