Pros
Many companies have aspirational or generic values that they post on walls and on their website. Blizzard is one of those rare companies where the core values are lived on a daily basis by employees and leadership. They are set in bronze around a statue in the courtyard, which is symbolic of the importance they hold in the culture. An example of this is the value of "Every Voice Matters." Our Exec Team has an email called "Ask the Execs" and Mike Morhaime, CEO, has an email called "Email Mike." Mike personally receives, reads through, and responds to every email he gets through that inbox, as opposed to having someone in communications screen them. In addition, Mike does focus groups with employees around the world, asking them what would make their work life better. These are testaments to how important this value is and how it is brought to life at Blizzard.
Cons
When your values are so imbedded in how you work and live at Blizzard, you run the risk of them being overused. Using the "Every Voice Matters" example, projects must be socialized with a large number of people to ensure a wide variety of voices are heard. Although this benefits you on the backend, during launch, some business initiatives may not require the same level of socialization as others.