Being willing and able to criticize the company's products is really important.

Have you ever worked at an employer where everyone is pressured to only say good things about the product? You have to drink the kool-aid, or at least pretend to, and always talk about how great the product is? It's not good and it doesn't help the product. Being able to admit when things are bad is really important, even if it comes in the form of memes and humor.